{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "654066",
    "entityType": "User",
    "nonce": "0x0c4f61ad5b2e97a46ae8bf966cd413e0aa8ce86b4ffe69b857afd57ceadb92a9",
    "signature": "0xe852073e6a3b1636ff511ccedf18924affd28bbf70edcc2b65b51ced8a4f41ce7f65ebe2370c4786fcb24826316f18dd52fd2be6de96ee3b9c31deda34218d591c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}