Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd319cc50bf6230b6cd560354c455f8653ab7c13e597466d6bc6cb0fb8897a0bf' 
  AND token = '53p/fnnnd0u7fq6Ps0h2ElbrnNCuPBbJB44Mg7C17eY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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