Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '27b04172dbd411edafaab95bf173c1541c206b89512722090b9a97c49291f8e1' 
  AND token = 'su7Lt6ZT1lSK9Irk/Lhhv4ZaTXmwkJlr6CmjdqK7wlc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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