{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285281",
    "entityType": "User",
    "nonce": "0x865d49dfe01623f74c7fc9b41f462d88fcefad111e40eee2d2e7974bacdfef83",
    "signature": "0x96b9042bd8a11dd2fb1d2360faaaf009feb590ed5e705e944450cfe0519c404112675921eb09f90edbcc50335192015f64cda1f479ead0149d7d96fe4ede36681c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}