{
  "manageEntity": {
    "action": "Update",
    "entityId": "876735576",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd4dac986135fb2f02cf9d6030eca902745e531c3cfd1b8c97ea21a819e9b7888",
    "signature": "0x6cb06fe3f857792f85a8fecc53c5634921b04d1724e5afbc467e9616d6c2a6da3856accfaef9786c0cf6d48d67f4eb6f3ac17af51797eee765d2d53fdfd27f0a1b",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}