{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x41dd7a3a0871f83a3fe8b116b57a0d469071be3c06aa4d4b4566233e84a6c65c",
    "signature": "0x5a3ff92e23c873a61d2aef0a85d540e80d5c018279f27da8731c95bf050f095361bee859b7cd0c6c208287ef7c9de0e94108cb8c87fc6cd09abf202f744cee0d1b",
    "signer": "0x1011297FAB27Cd869ba8313983bF4793AB784705",
    "userId": "540848139"
  }
}