{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1301",
    "entityType": "User",
    "nonce": "0x60d52cd99655718ef6e3dd3b8473577dce6ce31bfbd56c03de21989b2ed1a9e1",
    "signature": "0x0eeb3ad3065bdae9b234fda993fcbb42deffa457a44d55fc17d4bcdf0cbb3b49645fe3b89fb79d49ebfc51c09bcaa05d4fd7fffd2b19c10ffcc0b9d1e9e8a7a81c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}