{
  "manageEntity": {
    "action": "Update",
    "entityId": "672308250",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x34330a523dc4a498ed6d83ca8e07f6b6ec7d816b66db33028401861eca3bfb0d",
    "signature": "0xa158c0d961116623d595905e99846fdaad3e0b8913111c07cfaf28b5b6400d986f3934d078d1a8f74b362c5bb39012c8db4f2410c26dd1728c48b7d1a423c7931b",
    "signer": "0x46818a04152E9755371104a2959F8f8803261949",
    "userId": "672308250"
  }
}