Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ddef932d2c7d2956d0ac43576731efdd17c26ecc42e079492a5ab588eabec2a0' 
  AND token = 'OBBsXZYdYeUZDmQc16wrBucBZOc2yWLHc4vXg7753Tw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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