{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354441",
    "entityType": "User",
    "nonce": "0xd76691d9e464ace7a2a928e88edd88369039683dab6b860919a6b1492d04b36e",
    "signature": "0xdb3e894d955b4e7ea81f67edeb384236c37f1bcb8a723e028507d57a28331c08411d58dfdfa269636bda913035d7b5108da9a3e3cda4bde78659de9a0103fc8f1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}