{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3144",
    "entityType": "User",
    "nonce": "0x1d3fa8c7c94ce03995241aa4ecaf7e0e58c6d9ba2f2915c55a5f9de071e0fa2a",
    "signature": "0xd743f8fbc4bf13f63860692e4bda7290751538521bb6b066ff0e32fb4744ab4f6f7801f52621734927491b76c46f8e44134921005bba45ff203f261636cfa1941b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}