{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0xbfac712c67d2cdf22999e43561cd3c98f73fead7dddc9b02dd84c04fddd5b72a",
    "signature": "0x64e6938f6462adee4c8f756dfa572433bedb759e7ea166925894a1f426a7b4601164423177bbfe26b092ea8a5e98eac3c11bc4f123706eda0a7885216436dbab1c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}