Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2bc6a8b87b0ac93aeb04761cef156401965f30f25cebe87b8c8e0b63107d643b' 
  AND token = 'tVbzNyheKTTol8CP7HboEWuRXNFOYOyfF/w93U4LbuA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}