{
  "manageEntity": {
    "action": "Update",
    "entityId": "541025398",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c472abae0791174a0d7bd8976060c65a945fb5c3c12e8d17900cc01e50fdcd8",
    "signature": "0xfe6c007ddba3685bce66dff994a8fb6986557ba8df41bebbaebfa840f1e1601634f2bd409e4af1c2913767555c7cb507818beaf104855240b68379e4c0051c3f1b",
    "signer": "0xb5537724691f15983DE5711C0d65b31050638eB8",
    "userId": "541025398"
  }
}