{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4847f6af3d1477570b3d4416474ddd4cad4f427f852345e210c396b6c3d141b0",
    "signature": "0xaf3dc7a68ece8dc2926556191f36daa8a01168664bb485ca4735443d7a4d73d128e6e69d1308abb7b87f7aaf3cf57e1dba9c2a1752f3f7982838524f9a8e55d71b",
    "signer": "0xbD185B7c9bc8B9205be401cffF0718b9905D950C",
    "userId": "435630935"
  }
}