{
  "manageEntity": {
    "action": "Update",
    "entityId": "467398673",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcd1eb28049af984dfdb5fbcda2733cb250fb525695db690f940ac985b08bbeda",
    "signature": "0x83341d87a01d0e194dc2a277ecd12debe7052ef3a5cd2c27e5c682f836acddae5b1a6864aede36cd289f2ad5426e90eccdf12c13cea8e70ac4d805bfb7f9f0031c",
    "signer": "0x46CfB51Fda6B1829B8aF13F7d99133767B3F3b17",
    "userId": "467398673"
  }
}