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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22be17c4b7618adc02f2a19a7dd370b9a9011a88c25a4a5ab7900d83e380dbeb' 
  AND token = 'f9+6lICB+hbaeRBEfziErqPm3cXOF616UGh3Fov1dMo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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