{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "860501393",
    "entityType": "User",
    "nonce": "0x0dca6f711dac3a2bf4f8c585303522bbcdde83c361482b54d0f3ab3b50fce977",
    "signature": "0x56446676d5b9b77de9248c0e8751522f23a08bb932341c54e48a792ed9668e2070db8a221a3a69a8799f6168fbc0f467dfb2a11f913f35691153e58199b827f21b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}