Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fba67e25cb89bc65bf45888eb626144bbc6dd356dd6a6ea3d214dba027d95539' 
  AND token = 'A2JajbQxu2H2rm1rnTtG97ZIrKzcZci9F4s4cYg8FUM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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