{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04447b24fde1fa0a1f6b8448edad91ceb3de87652ebd56d593d10e9486ea1cec",
    "signature": "0x11c564f3aed1a42a2939cf3c2f8ed53f69b9564e54ec0640f7304dd7b3faec521ca7f4940d6eec98b190c8434dc6ba2770793100573ce12f5bb4305aaae5d0d01c",
    "signer": "0x6DFC9b2081230853d5F4203e1e3232ed22612526",
    "userId": "535575"
  }
}