{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x20ceb2e61f93cc502cae86f3b45e2b094bc13fd0cbf8e5243adf87603290db48",
    "signature": "0xaf454a6e44d424967dc2208d2cdbba19db59f22592ebf81a9eccdb6f7dc0cd823f6f7a88f1f0b4f15cb37c364413e888e9e248cf0f8bf8d0a7117128b9e83ae01c",
    "signer": "0xe6fbE11B11b240a0DF37662956fd7EfAF03A3aeD",
    "userId": "438156740"
  }
}