{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87667",
    "entityType": "User",
    "nonce": "0xa6f865d3f957034bcc18f6591427ebed277b89855bb430dd1f85f0f601e47cb7",
    "signature": "0xa02a6a9049642b862e9b5bb135b6eecf1316cd354b04b03765bfd105dbc029f201ce9e923c9d3116f02ba8025482e0948044a51afb6c26d98dfeffc50890790e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}