{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x7afecbf0a2030975141c74faa54779cbbe759e986b0d760672ace083ae532e94",
    "signature": "0xa0a7f06e5d66fa0246b8093ce5423edbf47a5eaf82fc3d3a169d4eb2eb83a7987e71b45c9d6d704fa487d04af6199fabc4f90f9ddc74a43f5b2abe0fa2f37f361b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}