{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x65b8d3c421060bf53a49a2f17c17354fb6b3d518d0d6fc7f8d1c0871473f182f",
    "signature": "0x055423cc278bc524c8b31d0a2a57ed076882050d2030210ef0a1f7a6282190cc58f52e3d5f1548501fa634e142d027c4fc3ef53aa8d094e946e22fc3075a032a1c",
    "signer": "0x13B7ce3401B600B95DFBDC848AcE1C0558a2dF3b",
    "userId": "155003518"
  }
}