{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "433946",
    "entityType": "User",
    "nonce": "0xfc351186d141ce5c18a3de7c6bc3bf226034594e06e85070387e5ecbde677dea",
    "signature": "0xf165f97b9278e322038fa6389ec4b8789aef2d8968d4a9513082e2572c3d91a23bce2cb2a1ced8924c995b80e69388eba68c7e5c2d920e50a58fe7e13d3e62db1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}