{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76457",
    "entityType": "User",
    "nonce": "0x1597aa6a08c4cd0d77a42587883d97a1e315ebd44272877baaee77b75764cc7c",
    "signature": "0xf5f00677984232f5fc07e6f88cdcdf7839b81f39b2b77e4d1bf22ca13435476a29a42817d84aac979ee4d6ff74ff62f7b28155b638fe1a07d795f7d3dfe1a8b31c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}