{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6c4038f73024a8b2bd47fb61609353f926e95c9e4a0c1b43183959f1e3219bf4",
    "signature": "0xf97886da7e1afe5912a5b2786d98fa069f9fb00a0dd9b7d83843b2de46ff9d232704c5f4c9f3b7ef82b4b6ccc71590c6354c9ecc649fe93449829f5eca7425441b",
    "signer": "0xD02f493822CfD3ab4838b3668fCEb9e1933104Ea",
    "userId": "705888946"
  }
}