{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x8decf733982b9df85a6d0b5bc9aaac16694bf21807bb53c8b6617ec3200efaf8",
    "signature": "0x4008450eaf7c61f7c7e2ea0b45b22082f683ffcc4cc30d906e7f9627ae36d22f71bf5487a01dc4913aa9261165cb62b590153edb2f2f2ad9e619110e8d4fa2f91b",
    "signer": "0xb3e579316b5c2BD570788161B30688eDa11B16bC",
    "userId": "729752759"
  }
}