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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7631a83bc874b53f4cb8864c89873c556d5f047b8a6caf18dd1d356d96b821eb' 
  AND token = 'hEsSgabWkdXxxVE7nXISaNOPomsVTplaup+bvzuQL1o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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