{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987235245",
    "entityType": "User",
    "nonce": "0x01754a6e83362ba6d059e198660bf3d21af2df98ae20b2bcb1869759eec21f8d",
    "signature": "0x722fe04eb10db25cc668fc7188009f5200b35212ce7b5d47af5d2f009fe440206a11ffb43b0f42d32d53c9623b0d155668ce41db66f91bf23a881fc883b769761b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}