{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xa41465a0651f0a6e9686582e4f7e3b8b69b17711e1b339601c68db689d976d3b",
    "signature": "0xf56fbcfeae5bc1584a03524deaa67b0ab5ff84f3e3d9d8bdefe84f1ed34412c24e9af7eb3c9cfbc1f48d48cc427b5f6759896fc4ee2ccc474c6895f27f0d04e41b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}