{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "567",
    "entityType": "User",
    "nonce": "0x5aba0dc688523e13affb13b0ad8bf84d931efcb9e088deda861f1065268ab322",
    "signature": "0xd14925f358f4e26f310c23d72a1dd3d695e6adc9d86d35b2d9b7f4af7764430c730340cb9e1caeea6330f61795152129cc4c0fdec137d039241b24d87baaaed11c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}