{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108437",
    "entityType": "User",
    "nonce": "0x779af6bb8cd3d936789542ca76e2f21e4becf2c6f03fd090845b2b424134a746",
    "signature": "0xaa223807b6ec0c33a1af860f31f7b8e8d2e65c9cdeb010cf7e89e9c46281e6f24bd67508428b55e257f913201c50788be7b02e2c22e1907826c50b6196523e031b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}