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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd60951822b53d0ae66ed8da6e07a8086642f76d2293f299218de6b8488406cc5' 
  AND token = 'hHmHbbD03jQ45wFLJmaLjzDiJ/6EkKmBBMrOqodWt1Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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