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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33639f6291f17642a917c2813c58a564106f2b1171f37c45690d58b32cf89426' 
  AND token = 'pqDEszC+b2jJxCUrs3wbJlhdHoXxASafRmaaCUiUXHo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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