{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0xb453f775c3f194c53191cc4cc38cdcf8345947fccf5e3481bfbf896ceaabc816",
    "signature": "0x6f4796c5e9d5fef893a18ee04b1d75f11bf7fe29b8f4db3cf8b41a60edfd59a906d1e46d1227be6c9e05beb6f4449290def90876cef6969890ce092d12109d781c",
    "signer": "0x7153827aB581A5a4289E37ff776a53d3E839Bff0",
    "userId": "937198665"
  }
}