{
  "manageEntity": {
    "action": "Update",
    "entityId": "77868222",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8b8b40ed4cc927e093d30b7a10b72a92cf7cdc971a3e2a198657dd9c1262abf3",
    "signature": "0x35900a1c5a12e0f90b753cea41c27b339fa5129e47d9dd41038186b3d00cf8a55f98900f62455c2a9ad1f5c0a5c716ca999128be2901c82aa5cdc97e22b4cdfd1c",
    "signer": "0xdCaB4F12C4AddB1c7eA4531c9B8e62e393CdD2DC",
    "userId": "77868222"
  }
}