Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd41c38b92282da5945403cf0701af78a534e51496a7431643701aef84ac57cae' 
  AND token = 'OMnAV5eucUi33Zz7q5NCPcHQTFGdfdAJz/0E47sh5qc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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