{
  "manageEntity": {
    "action": "Update",
    "entityId": "897638994",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd9d28a3317137aa661ecc1f308e311abfb024368d14e82ac5fd19a3f9c8299c3",
    "signature": "0xe048b9d2bda6cefbcab995fb5154861cc128f1a7527eb0e3399c956d30e6bfe23af89150ff859d3805442462257847dfefa422e8f6be1850a5dc3eded90949501b",
    "signer": "0x4f5054353677594Da8B00602DF03a2C18aB5a9Ea",
    "userId": "897638994"
  }
}