{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16564",
    "entityType": "User",
    "nonce": "0xba7db2a9b012d51e0cf2e19c01a37158df496befeb1d638c5bab5f23f552ed1a",
    "signature": "0xb6c0873b9046608a4a74a146c895a57fd38d724a617d768b774d932b4ee364556b5943cf2799918dacc43552290063cc94e876635315737662d51c1a991be8591c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}