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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '028b91783056e5f3bcf4691254cc09b7654e4623580714e27641cd2f1cb2cb3f' 
  AND token = 'Plx1F6E65Ul/iUl3Cgnyg5xr61S0tIXXdX4vv5CDxKk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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