Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c9215cf0c7073ec0168cc2509afcabfe09b99875aa839059bd516e0eebc76f05' 
  AND token = 'PfbLxdlEMoF/NPKrMrHRho1Gk8bTQoDGlsoCLnigKzo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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