{
  "manageEntity": {
    "action": "Update",
    "entityId": "280220384",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8dd32bde3de66697a6fe3ca6fc344708ac2a53bcfbbe669d2368d55ed7c894da",
    "signature": "0x3a998f86bea8a8d119cd91f6ea99fd516cf3de118cc9019ea1617cdebcc7706f424e40725ba001e8665add55a7b3cb5d2236427d578526651f76caa09871ac5e1c",
    "signer": "0x2a3494ddDB5D34Cb2778C63dC6e5eBeF02071FcA",
    "userId": "280220384"
  }
}