{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333145",
    "entityType": "User",
    "nonce": "0x14c045894c03787f59bdc9ffd884c79a90f75e8c251462e548e94394f5d045d7",
    "signature": "0x3b073f5a08cd30662aed1af3baad4d37fb21bd734b254adb9791927fa835d0134db53919d51c41ced67a6808a10744dee97d3cec6e435aaa950593a4f119debb1b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}