{
  "manageEntity": {
    "action": "Update",
    "entityId": "526106648",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63a4f7824f6769a86114d62e4c9210436c7263769cfabbc6aae80a8769da16f2",
    "signature": "0x2a28b9afc55ccd10bda955f86be4a63b8b61bc7848719ca34aff93e239a07e61145636699de4cf5e1a14c1356a4fd27413eae90d82d8163f2fcb69e2487a30061b",
    "signer": "0x18Bad5B6cA2128d4f8Ec8E28ffFe6Bd2Acc00033",
    "userId": "526106648"
  }
}