{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "351",
    "entityType": "User",
    "nonce": "0x7116ad16c3a81ce77f0ab4d3e4f980ab9f5a720b17d9b713491cf768b66a9160",
    "signature": "0x6dc3a47da4a564c98f88855744adf7e91695fdbc2c2d5576526952a377f7e5444fa3550817e9458fa1e406dcc7065aba1f65e8873a6d743f959c2476e309184f1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}