{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332",
    "entityType": "User",
    "nonce": "0x3f16678153fecafcd40237fb42ec430957b935d6bfcd18d376115a4b74d6b26e",
    "signature": "0xf80060c621a73646fcf999e30967bc19143d896c61ee6bf018cc9610904167ce39bc41f636401f7eda4d97e05439ad7834036d911cdef59fd3b13d047e206d171b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}