{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57828",
    "entityType": "User",
    "nonce": "0x463a8f68a38371646a0cfd016860201f3944e9bf9125e62fd02e89554a38023b",
    "signature": "0x3d1c80b63e53a9c1721379bfa7a0f79105e2ddf9d9428f8387239a55772f625c3634754dc45c05c88289138d9ccf8540e7d046a72e1197236c8132a55777127f1b",
    "signer": "0x10805E046e879D8e4503D67e495Fd1d280142e5D",
    "userId": "355715"
  }
}