{
  "manageEntity": {
    "action": "Update",
    "entityId": "947561688",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieral65ssm5beljfdebc6c5ky2fyhp5enlku5wzbygsrsmahkvxmpl6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":199018246}]}}}",
    "nonce": "0x71c5bdbdb7f82f7ac22a7709783002c34e1f797339c3e18e4c56c56dff28b889",
    "signature": "0x671246e8cd8dbf17bd73027d33c51415c60c92bc8fe73c7b24e157ef74a97d25658a83747c197964a5572b41215ab0c79933dedccc62da3dd1204f31a64242441b",
    "signer": "0x85add34718Ac3B027adAa9128849adb2B66ed3b8",
    "userId": "947561688"
  }
}