{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "97773",
    "entityType": "User",
    "nonce": "0x8c505746b7172cc9ff675f00774bbd931d702ce7b94455a7d7c50008f5f9e695",
    "signature": "0xac28efd5ed86775b6618a06ae5da43ad29ec2b0db0331bdf5d8dbb32eb477b175cff4bce17cf21fa81dce730e8dd9e62f08e644fae4de40d3138b7dddb541e4c1b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}