{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0xab873cdcd3c7dfedff1e770e584e4bd6c622ffa9cce4d551f43136ae09e01bee",
    "signature": "0x5f1aa96dd90b2e88df78b52f2deed35b663133e0086918ec5c669c3257ba0df748fe69e0126cfa3d408b350c93f2c44d2ab5b60c922cb581ae4c089312c8ccd91b",
    "signer": "0x7eca770aF81b4b53Be52f6783197381Fa9521b1e",
    "userId": "264030906"
  }
}