{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330742129",
    "entityType": "User",
    "nonce": "0x82f36f1b9a5acdab02ba7697b8a0c01533b25c3d7c1e0677f8055a79b4043fbd",
    "signature": "0x7b656945259ee242a8ecda1842f22c978a9ff6e298bc96c6fcdb126eeb0c4c5a0dc1271fae06fcfd5f10ad29f06030fe33d1a00231165e13760ddae2219c51c41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}