{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154377962",
    "entityType": "User",
    "nonce": "0xd400fa902c094b747240dc8897dcc78c72d921392b8ff671d64f8b64dcca6510",
    "signature": "0xad0b4d119c607cb62f730805c3773b012f8354aaf5a7517a0ee57e756c3a816e75de9d01a5929609dcbc2e0639ea10ebf3d8386f8f00d1ecd1d6c1df04c9562a1c",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}