{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf53b0581f87628a227c9c51793cc5035eeabb161d353dd2939318270f6f388c0",
    "signature": "0xea5cbfa8e73cb09f8b2602783f9bd5db9c3e2b497f131d2cce657578c35f57e04f84ce5c1d3b0dba9d206309719ec4f37e9392ba3c4acc4d1ca42e66921e00591c",
    "signer": "0xd0a859CF2624a008D7A044Fc8d234f7A34024587",
    "userId": "917830143"
  }
}