Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1ce56a4d71371a436f43e1abe1202b1c3975704b77c5d597cb0695d5c43a82fa' 
  AND token = 'GqVhxrRpEYa3/Xk3hrmpUZ33YG7rGNKiWN73xw/FTow=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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