Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0c36b7e047e330b1089d49931e23973906bdedc5ea92ed857aed24c054cb8227' 
  AND token = 'uTj+cA7CX+rrApFVRFfRVDGWru4ARgSshUkJ9xhk5xo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00107

JSON explain

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