{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x2964e52de977b8013d601c03a32d830c59749c9c9487bab75125e6abebcaa4c2",
    "signature": "0xc092dd10f93c062c8f4a70caae618bd4507a25714f0822530b625139e097fce744704f758af41d9429365b78f8dcbeffe89aa4df8b3c79bfd74ef135ec8b66441c",
    "signer": "0xCf3E6F9F4BF41C4e355E01484A92aaf61B6dd8a3",
    "userId": "149919577"
  }
}