Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '03664427e0ec8a59d88cb6d11fb08b000881866ed10e13c52c59d472c3e4f871' 
  AND token = '2uw98R7cixvQrGwhLKyI00jhPbwCyvta1UsN/a2LV9o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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