{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50737590",
    "entityType": "User",
    "nonce": "0x8cfa9d16997430671b83771c84049c5f57c8578f39ceb7c49a22d6b67f81bcf7",
    "signature": "0x1ea1f929579b328361ba57a8f7ce74cc17f59cd77a074e00fd2c1eb049c7c32b32f0e0f10ef1bcec24a601ffcfbec59fa241792d529b94ca34b9ec90b095c6b51c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}