{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13721",
    "entityType": "User",
    "nonce": "0xca149e3239e498b3fa24e873ac8f3fecfe9c01be76cbc2dff2ae1dfecb03dfef",
    "signature": "0xf396c88e69f94a9cab8d05e5898ff8142a995917a5cbeefe0a49f01276ed04e510cca25005b38bd217a468712779bca9e7ae26236817a46f3246367d1f9c73301c",
    "signer": "0x23Ae8E2241d8d34cC28c882B6aF853c0bB4e384D",
    "userId": "355794093"
  }
}