Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1160e711e1a52a31bd163b2ca84fc50fa11227830d3f913347333fc11186cec5' 
  AND token = 'q/L5I5fBdhhHcJWZNuG7edGs3Ck6v/mj856sVlzPB9Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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