{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2a7469507537cd5c5da6fa3d382ffb1055342fbbd2d9f7fef282cb6b75301d5d",
    "signature": "0xe2221faab9a4fc54fef37d9601098588d094eea90ba316f102aaf1841605891d73c1c09b77668c05c94bcb34339e855fc7b44aeb3f6253b6e151fbb47c0f97781b",
    "signer": "0xdbb5FeAE65617ed3C8616A66B1152898647cb83F",
    "userId": "936213876"
  }
}