{
  "manageEntity": {
    "action": "Update",
    "entityId": "506796662",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x41565d153bb5368f9ea6eb5ac72576380c48372ad2876a96789b03973763590e",
    "signature": "0x05cdc034cf633d8bb3f1327fa47e99631df16e2218bc179c8a3da4d0559194530da04682297f09f6e0cd3c64583d426251667eb1031746e796e2ba5c83d0b1651c",
    "signer": "0xe08C71DA3e0c879D36bb941Ad5D914d0a004Fd1A",
    "userId": "506796662"
  }
}