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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7c414e327d895ae4f2f965059b3b56b5d352c9a9a8bc36b8e0be168aa7b55f97' 
  AND token = 'qP8iC/0Kya/n2h/EQMvNbdgYL5wI1zCoI7RFocX35/I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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