{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0xe1180b1e18591a18b9f112f72d18c096159a2d82eab4d39c02fa0870665d6560",
    "signature": "0x2cd262c40a8dd994a0f54d1542a5a8bf7a1ae4c35e50a9f8cfb236b52d15f6c40985dc288ea5fc4eebc9edf758d73fbcc3991188efc64cd454fb3673022071bf1c",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}