{
  "manageEntity": {
    "action": "Update",
    "entityId": "472472299",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieral2c5yjnfx4yl3bsnnu5x45pkkbyeagj3tsl73pug24yrple72osa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":972},{\"type\":\"playlist\",\"playlist_id\":16272},{\"type\":\"playlist\",\"playlist_id\":34137}]}}}",
    "nonce": "0x768759ca82fd66849384a9fbe1f3d4b7f5b5eecc2be6ca2f4ef7213f15374786",
    "signature": "0x47076bdd7f22067db7bf4009e5a78650f70a0f75e883e6aeacf3b124c942bd251f7613cb5f0a156008811ac87e1a17814bc609e7686113ed058e33a29380f6621b",
    "signer": "0x8A2eb611ED13B7Bc9CED13f52F7e15b1055eA0EC",
    "userId": "472472299"
  }
}