{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19940",
    "entityType": "User",
    "nonce": "0xcf3c4bf8d214b3821c6e87d3728c468f07f00b0433cf774d78312b195db1de72",
    "signature": "0x4606b7b2fe79ffc9ba1ec7daf561a5c5d95e0023ba1017fbd0ee85aee331c26e2784b073bbf1eb939133c0cac6dbe91d034b144dfb0ae37a28781343c82109b11c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}