Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '92a304d1a1ea5b81bb0c4ae96acd9a2403e781245012742bf03bea9f15f16694' 
  AND token = 'MJLEWg2wesNzrP0PKWbIIOG6EBBeGC/qeHlW9TNqXqw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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