{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xf4e1ad342cc9f7a2d5e22de607f60db27f93d37f3a02be92625fb324ac8949b8",
    "signature": "0xd385cd45dc2a90d22727cf535db7f55639e414c0076bf5ddb454f886c67fce195a6370b62ccb861bc41e85765f6bd3dc8a8450e3e9f198c6f977362f18e286651c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}