{
  "manageEntity": {
    "action": "Update",
    "entityId": "920253243",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x78c740bda07d5f5b8a15f4572de35ff3d7f1a4c62855253ef4f2b7076d05b54a",
    "signature": "0x1747d093e0d85ab7c67bcaa4a42e05756efa670695d29886984688f5f16d382f7ee2a27cf1d7d4cb564cd5ba6bee4aa1b3389292e1f5ec7434b3d5eee98eb8661b",
    "signer": "0x881a4C74eaE2841838dfF35f4C094176BAF9239A",
    "userId": "920253243"
  }
}