SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '34bb34fa48a9ef6db1d1d1bb151c8ce39e253dbcb6d901cd594b319c45a685eb' 
  AND token = 'PlwzSQ2dJIvgm/iaT2SYLV+Cw1fANcIP0DHNYCuUjWg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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