{
  "manageEntity": {
    "action": "Update",
    "entityId": "189995856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5ovbq7sexda7u72qvtfompkiilnlc24znsu74yu633p5neflskua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1716881204},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x23c768b2f011d8564b2b0f3eafb3405aeb94723224a8c363bc709a68d34748ca",
    "signature": "0xb2427b63689b0e117ddde6d0d78aed8064d3149badacee59f560e98eafb0fabf509ee43edb5a9c1443d73637492c763255b93199364c78c24bb62eda4908ad891c",
    "signer": "0x49ea1963bD0698Ba4421742478714fbFa38E0719",
    "userId": "189995856"
  }
}