{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314758",
    "entityType": "User",
    "nonce": "0x683fa5f32b19bdbacb506f442552ef86f73400e26e75ba2fa9284f17d9bc4007",
    "signature": "0x59dfbe0ca13c34e1e6b28302e09c94e3c986eade508ce2127426bcfc1c716db24b538ea7e00200403f9e094072dff58b19cc37a0d42392496fb9506b1368e6631b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}