Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ec4d18ed9c9fd799f321e45dc6abc425b6d09a2637df055055b4f0a48db290ea' 
  AND token = 'Obdr52/vL96VObHRGc/T/2anu2/gJ3QD7fQEBO9nYnI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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