{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6301",
    "entityType": "User",
    "nonce": "0xa1ccaf4584fa14f8b40021b3c45e67b2d4deaa711c198feafc1e7694e3c794d5",
    "signature": "0x5cc217aa47cd092dfd97c8ccc6d8cba37a4941c582a1cfaa285948918f60ef9b3850bcda3920379d1ac71e17e309f7fa4cf2afed55d93f9375f078b760bbd6f11c",
    "signer": "0x8739aB96B52ccc56d0E5226Ff69659162d4269A9",
    "userId": "320952162"
  }
}