{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "801898123",
    "entityType": "User",
    "nonce": "0xe2ff4d9bbf0fb56304726b747bb830b04458b2db8e93d590c5d6b0258ced69ff",
    "signature": "0x788661df93ac7db87d88835a87f6d597572f058c115c92089d4ea35d4083b19c3253a05d20ceb045ea19c544947104abed8a547160388b60e7a40555410f97671b",
    "signer": "0x74890D1DB0eadA2cc7FAaEC8D37F9d9aA80cF5B5",
    "userId": "770154030"
  }
}