{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3db3edef0fa2e0f8a4b483e9664fe9dc11420cb5c577adb78316dbf144bf26fb",
    "signature": "0x1c74a00ded6f5b7be9efb1e66d01bc214f130978be6ba19ebf14b9acbb7f3b5a0965d026e0fbc8efbef0b44c4fa947b43d03360cda33ad9220af654cd13c3a441c",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}