{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfe541ce6f34b4592f3d4c5df0c09208052b61a4078832cde0e1dbbec553d4e81",
    "signature": "0x26fcc98afbec5966f41d0538278def152df7b49379e80595f1bd5ce2535dffb675baf3bd4938dd357ec62f7b07e30c538db928395f7816833fc1eb712b3ae56a1b",
    "signer": "0xFa2dBCb92930D97D2aE1d8Bc7da6EAda5bd4E129",
    "userId": "981230458"
  }
}