{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2",
    "entityType": "User",
    "nonce": "0x0b8c81b0c2d17358bf7a83dec078becadc4c89e79409a0e977386f22368d207c",
    "signature": "0xe88ad943b10b54d7491dd80fff7ab5cbee742c8998ce704a90513b8baa9582ed08432bbf6e2960f052fea5dc41b22dfbe711e28bf624b0ace50e6ed865e88ddb1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}