{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa5253e4d1602550fb63f160c72ab58e0d48e4c13cee34aa2ca4906e9f2081ca7",
    "signature": "0xe341c1084124d5a853c72bd26e4aae24b4c53784ef761b50a8d1c42d62b7e4e853e9b1c3cccbe07d5ba6f290bb988bc5e56025def0f968782c814c71f2e15ab91b",
    "signer": "0x522f0E676f4b46A9f5E9f60Bb11212996Ae5bdBD",
    "userId": "586123267"
  }
}