{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xfbc80f965bada80d1d7d61cc630d65e74335cd27bdfacd11cf1d22348fbe30ef",
    "signature": "0x23deb6644347888d0ff9beaf94349c54a2c7e0ce732c71b9af888ec3c7f202b5663bffc4d19953f3b332b4bb972f630ea1f07da93e17889599b55c513f8b7e2d1b",
    "signer": "0xA15B16B79329FeD8a32235A0fe8eac6473Ae766c",
    "userId": "511938019"
  }
}