{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117877",
    "entityType": "User",
    "nonce": "0xcb3f31fc1258a0ef50d17d096012cabb3c556a5c04a2631fad0523f64f44d483",
    "signature": "0xeae46a5072f054d1796376b0ad4994a0bd52318fd08144ecc708cdc1c81a573907a0a4d468f43f3eed21baf203fd25e6168f29bb715995585ae81748f498a90e1c",
    "signer": "0x604b4F353E759e6Ceb980b2Fa04e96FE85AC7d1D",
    "userId": "235338"
  }
}