{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "570740739",
    "entityType": "User",
    "nonce": "0xe540900f7ae2b4c9ff015a00eb61cd44a311126d422b2b7fc773e45ac37840e0",
    "signature": "0x53a7848ff10290b9f8eb6e499ce4955b243d73fd6be820c152991e89132771446022ab99a2cd863d8f2acd7b183b5b2368d022e57f39c26cb78146c5d453a3d21b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}