{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x06eda76cf232902934e0a84947f44aa6980fa1d3b17a2b957e0d7cacae981c63",
    "signature": "0x87e4e0cbc4f6aa01a720118d8f885bbe0015ff790f14c90b4de9ead086e4eaeb05220cf2f12b97213096c64a7bdfbf608dc58500ebd229580523e3f80ad6f9d51c",
    "signer": "0x7D5Ca1488d693753630b505Ea4CedbC71C6192eF",
    "userId": "893153463"
  }
}