Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9e57d2d0aa3368840ebb2f2a7fc5cf990f0242052250db61881edb46b106e32a' 
  AND token = 'gorRKGfPILFayaIVJyprl5JjGI4J7iJsEz+Q4Hruqko=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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