{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3d31d7efa7cd34828193019cba0b32eda7ad34946073a7d15746553f9c9efce5",
    "signature": "0x7215b6bc4402f482db735c9fa1a35864e7f2a30b5a0ee2268f69c242c840c23a79dec9e954257673f42e2a1b4dcfd2eaec51694f0632984bc60b68cba965d7db1c",
    "signer": "0xeA94Ee2ea776d6127FCbe3D570D78294EB75b2bA",
    "userId": "286268923"
  }
}