{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384055449",
    "entityType": "User",
    "nonce": "0x4965a1118cb3f53c5b7560d974f6c8bff19173a8a746a9a025286dc1c59fea41",
    "signature": "0x9e25e0119e1d7b238be59f9fa005499934835ac31c52d600da4e1fa6197ee7e132025b6ffbd629dbae1240255b229d2d59388251972c51c19d80cf5b432416861c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}