{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144",
    "entityType": "User",
    "nonce": "0xf60b8ff73e4afe02182f10ce9fb8c1d2d29a67cf029d9aaf3c5ede9c3e6a1b56",
    "signature": "0x1013715090f0a5d3a31543fa8391c4610845e5d8446edc4dbb02a4c751c58a6405fdcce7c12165c2c7afcfc9923b4eaa0f62393d9be8002977b76b79a07c26451c",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}