{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9f0e35ea983171fdd2fdf893ac3692f58f787e119bddc97d81b332a466717f4",
    "signature": "0xf6a52de77c71f91058147f19dd8ac4f7cf0202006cf2a161f74bd3d19a9cae452a457f886d9c17f9c1d031702251069000f9da39ec2eec1d3f5b25c2a8f0220e1c",
    "signer": "0xE7743A7400A92290CfE93A3de48a3D4A33D9E97b",
    "userId": "802326336"
  }
}