{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "768479471",
    "entityType": "User",
    "nonce": "0x85e25a90b06c396cc06cebc252ec4f02e74fd908da8c14627cfb61d46ebc15a0",
    "signature": "0xeba900a2d20a93b6f3ba694451beca91ea5e8687b2e500ea1ff2e03ab7e083be51bbbd293ac1a30eaaef39a2a3b456bf691ab9d7ae8b9d1fc1a702a225a3093a1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}