Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9a042555d7aff554f0b8f7ad7f07ee3f8d3af95798f21ebb6467c1092236da49' 
  AND token = '9rnOcx87ul5KT+VmondR8tRbiw7gNWLBUa5+fcboAeU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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