Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2383be9af2944b47ab23e025bdc687fbfd729df1fa571d74cc27827de49f0c57' 
  AND token = '5QMigi2xpgM2vnw9Za1B4YvQaM/Drw9btMvf4wYqWAY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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