{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780083254",
    "entityType": "User",
    "nonce": "0xf864cfd3ce7041b3ec97183dfd66d2daf9312108ce2f18abcbc13df67d1c0fe5",
    "signature": "0x7ad6eda012e4b18166211fd9d99b3d1f0119b8683259d266ed0f04d85ae586ca6ba460be60b99c8c7fad283cd17d007898dfcf6e3132d6954151aa15595981751c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}