curl --location --request POST 'https://tapi-sandbox.trustology-test.com/graphql/' \
--header 'x-api-key: {{tapi-key}}' \
--header 'Content-Type: application/json' \
--data-raw '{"query":"mutation(\n\t$requestId: String!\n\t$publicKeySignaturePairs: [PublicKeySignaturePair!]!\n) {\n\taddSignature(\n\t\taddSignatureInput: {\n\t\t\trequestId: $requestId\n\t\t\tsignRequests: [\n\t\t\t\t{\n\t\t\t\t publicKeySignaturePairs: $publicKeySignaturePairs\n\t\t\t\t}\n\t\t\t]\n\t\t}\n\t) {\n\t\trequestId\n\t}\n}\n","variables":{"requestId":"e125d4ea-1ce5-0e69-275f-a11939c33e1a","publicKeySignaturePairs":[{"publicKey":"04fd8a5ac45dcdaa4a975e4cc1cc32d08c4f67705bd3bd61fe6d7e03f82af34c2881a287d625803d6ff4e7857904b75290e859f6c10f49f38f69fa77777672262a","signature":"2f660e6ae78cbfc33c21d1cd9ff9bc16f51b51163aa375ce1819aa8fdc199a2021dc85b41b86a7a5efc75b595dfa9b8d2e93553831cce86e4a727b6153dd253b"}]}}'