{
  "manageEntity": {
    "action": "Update",
    "entityId": "529037719",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbfa7ac65444605396dbaf806155f7c0717c6116e3324c103efc7d2655effcda0",
    "signature": "0x0c593688861811b6c3e2976a195e8bdf3b1809e591ec36d612ae5ed0b6969a34213a3c5988feb92bbb87d24f7e24e00d405af0b4df60767fbf86136d8f76c0d71c",
    "signer": "0xdD6193296396c62c3C2D7039319B4CF3b19eF254",
    "userId": "529037719"
  }
}