{
  "manageEntity": {
    "action": "Update",
    "entityId": "234476329",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc1d519a6b7dfac6c1eb8094deacaecc7b2927179fafa014e281d09ca68d2d478",
    "signature": "0x917fba4d309ee7fababcf610ab866b1a4f69cbca442aef1cab843f70f5197ddc20804fb26deb651cf6d2ef2c5a9d8ad2d5df1e3ab5cf63748de828430f9866021b",
    "signer": "0x025eb3697DCc7C20f6B249c18F57d6FF519660a7",
    "userId": "234476329"
  }
}