{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "730122",
    "entityType": "User",
    "nonce": "0x61ba234cce5b3807c7698f0de7b37778ed8899f9bf1a6772db6aa81b59d58ded",
    "signature": "0x33158c63ad7d5339ad488033bbcb40c89206835e6973d5fc429d67432b32cf012573333e7ef7aded59536023b37ce2359517652c176ae81ff10be6fda3b440ec1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}