Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d61408d91587e10c037d521011c6ae7cd50595a5d10853de32c708b7688bf2c' 
  AND token = 'aEaS1G5iYpR/m9I87sY17Gq/mGvUm7FiThWJ5SUvj6M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00083

JSON explain

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