Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1838a28077d3ffe2eeaf81381803ab529483cd0cd8365135c3cecd61fb0dcf73' 
  AND token = 'LV4hkHJT1Cg1xASs96rYCWMn772/Umn0rOK2nauS2h0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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