{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329521655",
    "entityType": "User",
    "nonce": "0x9977ea3455aa8e2e5d2088e456e95746f82f7aa5362db55140a82b26d00d9612",
    "signature": "0x17224297011bdffccf88aa6c8e47ea8792f460b288b3c4cce4b4322ea6154ffb6a2a94de8c1938b8b3719d038448f00ff3bcdeb45e3564c04b8b463ebbc3ead81c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}