Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4776150db8f4112b22a12621359a7849e7b897838530aa24f19109ab5e6e6b60' 
  AND token = 'ieaX/cmu/nkBqBNrIXaw9rTF5PC6utk9EP3TYpTB1g0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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