Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e4b40a0e8ce84d93acc70962d3ac531bb1b940d11b47293ea626d1154f12333' 
  AND token = 'ZO1ZXrdFe24qbI6D+Skg1UwML7HfTeUBEnzdrP4Yil8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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