{
  "manageEntity": {
    "action": "Update",
    "entityId": "921777960",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3f3606ab74fd1195accc7708552dee1706c113b6cf0a9f8f11b09a1229ed22f8",
    "signature": "0xa06df6200d2e116edacb4c3667fba91ba45df8cc4765f719034ab8f446ec773d003b522005d418d968bf166b2bcf2ae62d36acc2b03f69af53c195ee273356311b",
    "signer": "0x1e790323192cc7A6755829dBa7Fd3D0870FF3826",
    "userId": "921777960"
  }
}