{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9c8d660a34aa0d3c7f5dd94d84e55c1df7c2be1e2e6f2023f8c23fda36627e97",
    "signature": "0x79ac3897356289e9b2f92b4453b86a25fc843d97aa78cd2ead49b4920c7745620106138f850c192300726f16a749274fa575d4b001c81b921bc0d5927d17205a1c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}