{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77508",
    "entityType": "User",
    "nonce": "0x3f3e86e193359c3e84ad216a7f596eca39bd5d4a36c1c894c68632ca70c43fe4",
    "signature": "0xab8f3a49ce3655bf70e52492cafe5cbeba8812ce70b5d3124c9483b3a50d7a1e10785beaccf16ae45bed28e541c42163da06e2af41d875f0a9513444a13654651c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}