{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346",
    "entityType": "User",
    "nonce": "0x3ab97f161c70c1e05aa00002b8626c2bb685fe6f6fe63d0b7cb33471da9bdcaa",
    "signature": "0xa69ed52bdc8773ce99a0e09a01bbd627866658639d3cad9f0dbfa9aeb1baf42656441acf3eeb040aa4c16a1f65f98b8c8b9044453333d5aee62110273a6e42841b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}