{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2938e91e6b8ea24e632443eabd683687444c4fae6fd2790761466962d0bb02c1",
    "signature": "0x1f62f671a5913c53f6c9ddc7987b9eb6f860a00c66dad5dc078ff6bb2399db6e57216da5df05c16617d7fc20806e796002cda9e6dcd259984826dfa0b3d1a8b71b",
    "signer": "0xcC2af23344274c5860DcD93635A9e14b1adC5ED3",
    "userId": "616129774"
  }
}