{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348954",
    "entityType": "User",
    "nonce": "0x987e783372b4675d5245a37f9cfc4c57c199d48f3caff19da908a4e4d06a5ae7",
    "signature": "0x5cd65d570f22f04d8dc630661857624a8fa70e6bd73e223f0aa41b32fa6eb5b91783b8531552cda746a7b2091d9f3acb85ca430c4b2920360460d14f3a47bbfd1c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}