{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xea3988181c3b3ea8ea527778a877755252636c2de209e212d03d49b50327d298",
    "signature": "0xb53805fcd3b7b7dc9fb8bd05823bcf98b3a64f3b5c3b18f6d8465e14b3933021362aa4a101ef2d93b75667cbe3032b893eb2985c935ae81872a8e8e413ae77c01c",
    "signer": "0x406fd2b6f6C6cC5622Ac1c5799cE4911D81e02a7",
    "userId": "461949730"
  }
}