Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3cdea9690b721abcb4816dc3ce9dce03e340d4128ba739a92d3e795ca96e4edd' 
  AND token = 'IlUfLbV8dHgYA6NxlsQM5T3X1paEX57EU0+0wtqe1tw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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