{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273387437",
    "entityType": "User",
    "nonce": "0xd5881b8a281c696c9a273b98c36d6702e65e5196c9c4aac1a99b56d2832606d2",
    "signature": "0x7c1f574803328b45cdf2eef532e63e24ffd89a661aef9ba278fe40bda21eb1703474f774878a82d951d23b3b28d2ece6a8964559629fc45f6fdcc6acc60da0241c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}