{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348435",
    "entityType": "User",
    "nonce": "0xc233ebfde2092fc66c4d67983fb47f58894675bb5a98e4aa632324738bc42457",
    "signature": "0x238c0e97c5011fa3809d777b3cfd48ed9139ad18704babef3d5cf93b7939dbdf4222493e4df86992597d5ff4e34424dba81ca2a5eed08c8cf8b9b34ef26b5b951b",
    "signer": "0x8D46758848B46fD16d027970035C88c708E03e3d",
    "userId": "870591918"
  }
}