{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341",
    "entityType": "User",
    "nonce": "0xebbc3ba549ff093078732bdb7bf47744ba06b06d6ce1b5c3b28ea0d3f826e0c4",
    "signature": "0x17fc824e5923d31b5d8b7bc6b61119e0e3b81fac4db012b457b764333b6763200f5c9d6d1596a614b6da3296c11bdfcb099c37b347c34ec0957a034a967b28971b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}