{
  "manageEntity": {
    "action": "Update",
    "entityId": "290317362",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8057e02ec74616aa946a3f71523b9bfdbaa73b1372a7ce69ef45d681fed55899",
    "signature": "0x5b9698ecf8102b490a27115c403715abf25ad2a4ddba5a5181a351c05a0adac74a745af5c220050d7d4f0985949a7c048d477de9d6a817406d1e38c352e852481c",
    "signer": "0xe03935A6a1B48d6F96fFb96E16DEd0c73888AB76",
    "userId": "290317362"
  }
}