Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '101f096f8bfa22da6166d2af04dc04666e166dd5789cd842b10cef757c0c2354' 
  AND token = 'B2D7pm83UBnRstvksjGUw1GlmYSu0tAyFY1AkgEm3dE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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