{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831499615",
    "entityType": "User",
    "nonce": "0xa5d3bf0595cbcf0cadaf9df2424ba5b90fa96cfc30746397db813c51d7f85e49",
    "signature": "0xa6cbf154f9ce9942c4e985dd4f3e721ca70d725cb0f62e26ff965c20126d91d552777cf3d837f54cc68e4b2daac4aa1b362e619dce73f7404a5ba2aabba7f2c01b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}