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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e96536013ffa66453c037531727159fbf149667ef9ec22fe7a2ac62c1e800599' 
  AND token = 'oW30tEgTb9U6NA7ZIs9whoNboaDPO3hL3HnEoLB9YJ4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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