{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63618",
    "entityType": "User",
    "nonce": "0x7b23d4e06428703bbe51b04619d57d4889c63768680723eba1f5388cc1e17157",
    "signature": "0x4cae74f446709fccc3e070acb68bd4b4b740b84f38899518512127f391af18306445b3c06c0522d460bfc5d1deb334cdf7b928c7be00ab935a82b510682f02d81b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}