{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0x7b8412c98895ffe781f0958821904f0a807c493425d2adbf6fa58e53c82894b6",
    "signature": "0x7058c3e6a1afe67b1071bb803fec44c8d5c5f3ecf6b00e8a42e636a6fa201ecd5ac3c467dbffd5114342d2d236595f331563109f33c094742bb4d15f39f2809b1b",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}