{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451691735",
    "entityType": "User",
    "nonce": "0xc300352d3588ad0fd8026bfb750c9d9a47f65c981a8d4336b46d99fbe7901ebc",
    "signature": "0x1d40e80006bf207a429888b1d6110623217089aa0fc9f9e658369d74ecb9e637044f2b621f29da271888e6f23828610c4433f0f0a9cb3ec4138becad2cfeacd21c",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}