{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68",
    "entityType": "User",
    "nonce": "0x12809d471e1bede775b6bd0676c4cb6e75c415b544dcb4dfaec03f43d98591a6",
    "signature": "0x185858ca13b2ce4f1bbd4050e22888511ee4513ea6cb6703577c9d0e84c784bc332fd68ee659d3bf6d4c82bef0ee10ffc2c865b46309586b3951372c975be4a41c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}