Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '12525578b43544044650d4aec40d85b913f49cd718bbf1357fbc787e60ecc11e' 
  AND token = 'p9C470Q1OziHZ1tnUuMG2iS5EhAiW1Z/L3PuxPWerZY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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