{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd42e9b4a164065965cf83c297207ba388c149072c5d5b9670977ebb873d7ac99",
    "signature": "0xbe034b45a9b1ea940d76c80ca59a24a08e943d4a1d406f1f02616c73b9627fb62367caba103e2c78d8db7f4c0f95f96da825c04cc1de7e82ff8e9ce5be18482b1c",
    "signer": "0xAbf691b5337B155d1d0807D5BdDe23bABb1D863B",
    "userId": "782781240"
  }
}