{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35404",
    "entityType": "User",
    "nonce": "0x624cbcc54e870c0f3e940f66bea3076ed94b01b92d95279d5842a70298431484",
    "signature": "0x31a5c4baab4141a5b05d6de3f77963c8b99ea4b44b87b83b7c35077e9878d3b94f63de30e284a6f7105c50f832edbcf856b241eb9343c501258faeb2ff8f86471c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}