{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0xdb4948a7bc1ac7a78acc7d4e08531f8f0231047b014070dd73652654361090ea",
    "signature": "0x123ede25b3462a0ec44efb4aaff6d1415656e31ee5237e70c5b90e582806f93672282ba9eac07a335ba0c602bb2de7c19ebd8f20c448d230e43d823792ada2091c",
    "signer": "0x117e656B4810D0f42C44E311B57cc6D7e5B6d265",
    "userId": "704914193"
  }
}