Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c2e5774daa95d65b7a8e7b7f23f72455ecc82a5ac1ec74f726adca984b0d1204' 
  AND token = 'IXFe1qIUwuhMURbArMQNsr2qdcnTza3CslRwgmG2bu4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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