Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1bec14398cade243a2be53ca123f0e5fa20f7277ddec51ac6fe4afdc7f976938' 
  AND token = 'Vs5A4e/nH2rq3FNYy4ugxx3id6vgnpsqQbjfaHefhqk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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