{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157375154",
    "entityType": "User",
    "nonce": "0x4426ebf9b540e4c1aaf8894e33e748bff52f39aed69951b51868b8c802ef7c6d",
    "signature": "0x46df79f9852bf302dbcb08b3eaf30f6b3424f2950853b11777ec630745fedfc63d7b22756a6932325b1711415d09337d1d097cfb7522d52f8a1a265a08b1d75c1b",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}