{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125737",
    "entityType": "User",
    "nonce": "0xef981711f35bc0b6cb7c20854b9f1210764749cea725b02f56ceb53c6c37848c",
    "signature": "0x690fdf8ba37e345718e703df457cecbc2716ba440c0330024aebe0365d551d515eb3503220675bbda3057fb863afbad68226db8519c93705a3b277dbe65634b41b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}