{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760764",
    "entityType": "User",
    "nonce": "0xe1d680817b6cfdf4a16c0e89c20f886176cc8b4fab83a32e9a370e7d0fc7708f",
    "signature": "0x5e3cd61106152fae4881bebcfde6929bdcfe354f17fa6426054aa3265aedd2a040c5cd27e388f9652f772dc747ca251bc99936031b10b2a542903712c2f0cc4d1b",
    "signer": "0xf9Bf82B2ecB609ee37250F00C0835d529331385D",
    "userId": "654530894"
  }
}