{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x32c16fbbb12fb0d9322c8e295bfbf84f7a91070d618ed4ec0cf3f61a5e1f8df6",
    "signature": "0xf6814c9a7958cf0c30af795e169b146193ceeb516e0a378853c40e3ec14f909822220866223d3b78ed941488d2a9011cd2de8a4a4299c2af717adfccf2f0a1811b",
    "signer": "0xa031396B4a7515E03E7c99A90D7f53b4C887E66A",
    "userId": "473445519"
  }
}