{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778045",
    "entityType": "User",
    "nonce": "0x51666cb21a108392f8bcc6c695945f0a33f2137a99707f9144c10f7924cbf409",
    "signature": "0xa086d20b939dafe408a14bc5a6ffab435d8177ee953d3d55d091a285275ab185217a134ffdd999f69475d81b22bd844dcf1cba6bf85cc83de46c08193a25f67c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}