Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aac1132055ed1ce9b768877cfdb7556668d77ade2e5e275331181377e0d14786' 
  AND token = 'jEplbvzflMTCNnRv7UjZpxfLaKfDMxzG1id8Ppt8ue4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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