{
  "manageEntity": {
    "action": "Update",
    "entityId": "657151064",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierade747dzdtrgy6gbj7reaewqfgeggzbapnv2p3p6ic5etizmzowoa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":671341078}]}}}",
    "nonce": "0xb2989876779e554630cdc62c11dc2b2c08f431143b869ffb3236c264aaa3473b",
    "signature": "0x5cfa86879d6ddb67a7988e2b29292d4fbcb0072f5778f33b0426b118632175175724cb9da193a91d25794ece23f021da57632d5343d562df650e1d8038f80b061c",
    "signer": "0xf24a43ea13664C8b854750a61A8857edE36542fF",
    "userId": "657151064"
  }
}