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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '044e93215c5e7658d524b4f73ef1306818146d9c8bc676b457b3cc0a173d60b0' 
  AND token = 'MoFIOnew/inrw+rybjl+7zBsvPQW3K634Zt3EIK8YOw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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