{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28851",
    "entityType": "User",
    "nonce": "0x44d38b8bd716407bb57e412e596a5be7bdfbfe323842a49ddfd007ce86cbf8fa",
    "signature": "0xc9552d5f0272462f9cbb8c6a7a6f80c77bcf8df376dbc8f982fb7d9b94ab89c373fe3be527e42cc2a44331465be131983bff56178b2640b1fc711d4aa60c81801b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}