{
  "manageEntity": {
    "action": "Update",
    "entityId": "107488362",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0cb4d4a2f572003acd342bb3d8918738848221cd3e59b9fa7093af373e2c8ae9",
    "signature": "0xfd649821d7ca6c7d2f18b806b9a6be8f5e21d1910c118eec000475b7aca588156f6185745e1a8fea34a0c17f0b80d8075cc09fe9b8b37d632fb7f45998cb40741c",
    "signer": "0x123DD49C14e579973Db922Dc349f4dCcA8246C2d",
    "userId": "107488362"
  }
}