Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fdff9b160e952fd72bc6b1986ae400c6b298ed661dbc66420c7440c07828461c' 
  AND token = 'XcK8q/cvDBE7KsZ7RKH6h0SYbtghmvmRVE6dLgTYSJ0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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