{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1575278",
    "entityType": "User",
    "nonce": "0xaf6853b7839117b6bda1b118126bdc2bec4c7c0642059c939529394e7d143cb7",
    "signature": "0x75194932478992fe1afaf5eaff439e665764700a218614810433abe14c297ec90bcdcfafb9675b3b10f2168529f4148f11c3160fdd090d44ebd9f48a8d31f8111b",
    "signer": "0xdf3d2a565Af22F148bCeAc938CD60CF50aD01907",
    "userId": "1686476"
  }
}