{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "598973143",
    "entityType": "User",
    "nonce": "0xe2ac15131b8e6442b542d0873befed914287d343536614fc04c09d5a6bc4abb5",
    "signature": "0xadfdb6ec5983cdd43aff707db68d138c892ea35cf3d664c9d9e56e29a1846baa05753f076b60ff4da37e512e754e5f1ec601a777a1582e6e580f8a00f76445771b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}