{
  "manageEntity": {
    "action": "Update",
    "entityId": "897638994",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5vkzpt6xjb2vvcizygwqzm2drjeok5eoyz3djz4gdtj4vfs6x6bq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":494560433},{\"type\":\"playlist\",\"playlist_id\":1900433197}]}}}",
    "nonce": "0x82a40152ffdf7534f379d703ea2abd127ef49b1750793e3e10d7db68cfadc4ab",
    "signature": "0xf148bf9ceb642a1b2ecefd6d7f94a799932841cc2821d757def2ac56b3f847952e05a01b335c446fb894af63ce647f13c0485d14dd982cc0e9628d54d4a5b0201b",
    "signer": "0x4f5054353677594Da8B00602DF03a2C18aB5a9Ea",
    "userId": "897638994"
  }
}