{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1823424",
    "entityType": "User",
    "nonce": "0x2204f5a559b49b5789ee377fd04d77fc558b1f01f3fe22dd94e3a684c4268ba6",
    "signature": "0x05c9a6c59b2dac6344acf421da256d1b6a3c403d23ded38e2d4ab8c015e6065b12335aeddc2921e7e1acd4500f7d304d4c5889acfd2a73ac37d610c064b33f261c",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}