{
  "manageEntity": {
    "action": "Update",
    "entityId": "353670164",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3a87220419f6378d249747f5f7713aca644aaf28f01896bdabb843b25688db22",
    "signature": "0x62f8fe69094186729d9bdf371bbbe6bde7dd2347d8f830cd48b422c70e827212775ea67e48f199245a5d63f8c8c33a726df30e8fb8b1bec3f6d1489bba509dd71b",
    "signer": "0x03828E58765a33C99b5b95Ac04b566b65d4aa282",
    "userId": "353670164"
  }
}