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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07a17354b2af3707824b696e75b5c498f1b9f35a0330d06ccde059ccfb1ba3fe' 
  AND token = 'w5MHfr2piJQsN2V3lZOrGwiC46ZhPHkJG3zfNMGY3s0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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