{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd25e6bca54725a23cbc8da6fced3b9d2987940612040302feacafc6ba0112c58",
    "signature": "0x580d3a54339d8659582e3b807c78da2316e60a49cf7fa8ba354a3eafb76d04c777c0fc6619d7987d32b42d316977e6d1246438603eab5bb2ea8a5e5c35bb9de61b",
    "signer": "0x1CE15807f84f3aA4EFd014D6A7B160fF62D1Ca8e",
    "userId": "212283807"
  }
}