{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856341429",
    "entityType": "User",
    "nonce": "0x4698a53085ba83c6ca2650e9e6cca224860ac709fd3d202ab527fc04cc662e44",
    "signature": "0xebcdb9df8ef0f46197da4b68cfe687ae149836da64c34702139dca4a28223bb24e44d07525e2c70472bf45e5d7891e6a05e3cfc6469eb4f577aaa46d9c60b4a01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}