{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "441864256",
    "entityType": "User",
    "nonce": "0xe65c530a8596adb8a0aabd301d0a067410a99d8d0f29678b9bd1a0d80d1c378d",
    "signature": "0xf961cea334b2eda4f686fb8c061ed9425aa2ca446c3d3082e10e8230eb557e2e69e28fa6167a4d013b27056e984ae8495b5159ff19b8d601f44d99189291d8401b",
    "signer": "0x6fb79570A836Ea8554ad1D745C12769B22f1e4E3",
    "userId": "283478"
  }
}