{
  "manageEntity": {
    "action": "Update",
    "entityId": "949272904",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8c5fa7ffbaed1bb5c159aa0ffc970c720b389b7af37d5a7bcc6a69e09ccf98fb",
    "signature": "0x506f3924accd920199f4d23328df7fa8a5cccad71a15f7b7373da731c539e1ec2119779080e6207bd800224d2418184c8b4ee9e1503ddab361442f2247830c521b",
    "signer": "0x8d58218d42cde5761DC602360aC71F0C170c869D",
    "userId": "949272904"
  }
}