{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf053f05d8decef7cc4ffd8f03589b38a2bf994395d1fc9771f9e94f2861889d",
    "signature": "0x52db817c840bccfc81db86a77994d38b965e6050b2978ca6d1e016471a475fcc484bec386ed774c9d2f3d88a71297a546f41b528f33d15d60eb9225a6590ac2a1b",
    "signer": "0x14e55E321cbE7Dac3De3f8E5514776431323C054",
    "userId": "207817023"
  }
}