{
  "manageEntity": {
    "action": "Update",
    "entityId": "103076055",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13e41bf2937073e0baacdefbb2c42c8b176c4d1cd16b981fffcba3508994713b",
    "signature": "0x7c00e7fd51573eef834fb1860b1e91f359c921d15f1c66d83c9a4602bfa08410148366960f4a3e99b234f4833fc42b830cb791cd560db4de81bc3e2695d803121b",
    "signer": "0xA2a96aeb1cc4DA90EB01C12046d16159737f9AF1",
    "userId": "103076055"
  }
}