{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x28f4fcdb1b71cda79b0f4fb8b7eabffdf07080edf699950d6fb6f9ffb433f4f5",
    "signature": "0xb9d5fc676ea52bceccf40f77bf8c54e69e772db788444a614d339a571a42bafb645fe545c360b2e64b27b4f5ecfe071bfff6493fea569c7713a508a7163edab41c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}