{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "561",
    "entityType": "User",
    "nonce": "0x91229a939aa9de07b6589da08482c5adcf1694a6bf78cc909c9e632c654ee74f",
    "signature": "0xb6a4a289dc74dfada5dd802b3e8c99c9da7aded8f442c9484334d35457705975322dc0194421696daedbb8a722847fef696867ab0001fc50ade081b65a17d63f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}