{
  "manageEntity": {
    "action": "Update",
    "entityId": "960158487",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraohkiljgatocsnkdufyo6lcwxks6txntkuzw5xa4n2x3ffqyjqm5a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":6273820}]}}}",
    "nonce": "0x4f5c067f53c81428a218c90f0519670917c62bfb449e3d24df9485fe3496264f",
    "signature": "0xecdf266cb19f4d54d4b65d9c76a65a5762153bdc9518537c29f1f25d6728e73b1308b0106b2eb722edb87c166058e0f5bc5ffb5ce36297daa884d29f181fadab1b",
    "signer": "0xBbf8F4053B145E8eC905ffb20f5b4e80B183D48B",
    "userId": "960158487"
  }
}