{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164240383",
    "entityType": "User",
    "nonce": "0x6cc385c6776ba734b4e91e22c43e6e6d1558a06eda51d5e9bdba900192691522",
    "signature": "0x8e8878cd85d3a730baee217f607cc54c2cbb740ed70b2c81a276c750a9a2bb4609a73add0fff20552221bd65edcd772e98f932383a23171202b48116de8eccea1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}