Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1acff9b0dcacce68bb56b82dd6b41284cc925535d437c74557fdf9b5bfe1c74f' 
  AND token = 'DU/vTdgDRua1sRed3HIH0Ml24xaHXce6Bw22LeVULO8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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