{
  "manageEntity": {
    "action": "Update",
    "entityId": "762940588",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraa7flthq3ln3aoesxyflbyfx2lpypc5xbwca3mzzvkpofsepv3faa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":106278873},{\"type\":\"playlist\",\"playlist_id\":590577199}]}}}",
    "nonce": "0x725beb01021ed7fa7201ddf11af6fb08b1d9ef928135e68b9d5dcaab99ca489b",
    "signature": "0x44277c4f8e69300088d653593b1dca80ff6fe950cb591e57d13a12ca4d909d88755c1196a4df084aff79aae4b8e5a6781bf14625e323674858f375daaee08be91c",
    "signer": "0x39a7C13F3b1bd0348543eD06174A306230F8285D",
    "userId": "762940588"
  }
}