{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x860d9aec6cfe2d17538ea1cce51b71c8e5e4b7ad2148a1a0da181afa42ec71b9",
    "signature": "0xddbc0b86d67779c322ba9bedd1252e708f7c20f2f5cf96e7af5c379d5b305ea31af89b59da18d4e7a3f724a891dad24343a5d8fe6d0a61e5a0d0257648b247451c",
    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}