{
  "manageEntity": {
    "action": "Update",
    "entityId": "607013839",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x62647ed1a222fcf2de7e97fd573cebaf4b16f1209cae57079d670377de3ef3d8",
    "signature": "0x2b2eb2a3802fc3513fabcc29772c1925a00e548ed5c3bf1e87f59a75a76291806dde1950e2783cefabc3e0806654b7b40be5b234fa22d4954d22e34c283a802d1b",
    "signer": "0x68D51d6a55ACf434B7Cc31b5f199050961c9f04f",
    "userId": "607013839"
  }
}