{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb44dfc4fca1eacda75965c5698dd7d358a1e5f452e3e6c720d6be53f2ebff145",
    "signature": "0xeaec11113b1672d258c990e1ffc220497f4e931649e5dd1bd9a87b0084457195569d2a585599e5fed3f371d3792939ff3631f00bb0758ebbf9fc30fb680afb2d1c",
    "signer": "0x568426a5D555ADe94657d547B2Df4a4dc1f0C014",
    "userId": "71569007"
  }
}