{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x376a7a711b8b9563ad155529f87cf1fda2591f17140d287071ff340878267dee",
    "signature": "0xe56cc75bb9ca9c0c103b72d766eaf252a9fe7e246c6c6f7902024968e879c43c473c2d9dc8727d126c7894c1a574b2a4bf3f1c67cb201ae1adfa4a66dba6027e1c",
    "signer": "0x86BFfB6d678187fc90264C94CEc5d39Ed9cfE077",
    "userId": "788370768"
  }
}