{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x35fd8a6d21c7c6279df7bcf7351f9aec1f821ac29eb93e454c7e239e65942ba9",
    "signature": "0xe8493d983eaa9763f044aadc7980bc52d36f83e255b760daf6a5a5885e4f856b706b0eaead989dd8af2cab3c4a20f3fde2f4a3dc71a31bf82981e4abfb577e6d1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}