{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc420a7def8d597854a2c9cba7d33b5d3942b57baeb5d88fb96d3e96705992c11",
    "signature": "0x1fe1ab24830a81549986931adbe82ecd253406c1cf03d13027f7c4eda634cea251f56fcae0d3cbb624fe58660c37e6ab92671e5193173141669ab8b5140ec39e1b",
    "signer": "0xdEba8b8003e0F1433eB0a16276ae38bCC91B5478",
    "userId": "293903394"
  }
}