{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90334",
    "entityType": "User",
    "nonce": "0xd950efb964280b16a21ea83bd9f10f4178a925991b9091db695533065a2398cd",
    "signature": "0x4e433b649dc9f677f1c57976e136cc6c4238bab75794e3739e2a9c90e47d7e6e19820d75ed965c542fd144014561719a041ecefbfda3e0e1a502321ec9d4fbd71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}