{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd8c00bb4e16af1ecd2de5a6a55437dda336bdbfc27bb526f84271c9fa7c748a2",
    "signature": "0x466e595270be6d5051ec310c879897d88d5a9f838db9f1a71d353aa84d09c04938b966b7288791c3719523dbbfd59b0fb494fd22b21c0d2ca01ba2b865c4493c1b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}