{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35ddfc6a81ce6be20d58752182dfe362dc5e65b2e55abfb4402e1186573bf10a",
    "signature": "0x48d7fa50ea970ba3e59be5567edf032a59aba27dbeeb70a5f2a098c1ca4ac99d6b90af8f44ee6719feadc671209a3dd584e508e342a18649e02a52669d7ce9281b",
    "signer": "0x670463115f893dd7fe082307D29cb409347bDB7e",
    "userId": "318260437"
  }
}