Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a0010fd1bba5ce3d76e9d823789f96605bda9e95e800063622bd292d6a14a4e8' 
  AND token = 'MNpk6FIXl2mluhzldmb3qdUkv8RLKr5zr19kD/Ypth8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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