{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe0eedefb0e1637049f398dc711d7dab4681f9c6fd124bf96a937985503f0b33e",
    "signature": "0x76291a06ecdf725e874819451634d0111dbf80547b2e03e95546f20bb42e6a6b247a0c769d4f72bc19fc81c904b33ca8325f51970b57fd7ceea1208d611e86371c",
    "signer": "0x1c80cC98C74244e7948218ba5FbB59F473A71A9a",
    "userId": "214620030"
  }
}