Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4f162f4d74964beb76e9f6884c0f0e7a6b7ebbc6b3bb49122fc0da1e8f36127c' 
  AND token = '60xIagW5Dnu7XGgM26qia1eLii3loh8zMr9pxcHBGOA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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