Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '172548e305c4c6f3c417d2137cf241fd8c120dda9f5ccfc70cb2a108708cd6e5' 
  AND token = 'wHRNk1NreeXE/B+S4iP9OR3G4oOvAV7fK+h15ynoask=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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