{
  "manageEntity": {
    "action": "Update",
    "entityId": "982005048",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x37bd3577ed9e8dbd829110f995730b2de7ac2fabb340683c071c0d9c1ec5b230",
    "signature": "0x13701c647e4d4a505fd3598e5413d193dbf11f54d71138b538e7beba25489a53086242edbec602a9a40fb274869611bf35dcc9e7e9fe976e4b0a94601062e5b11b",
    "signer": "0x8D20850ea14B1793353e393795cA05123f1AB383",
    "userId": "982005048"
  }
}