{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb11430f06222ec3de99d0e1c6cc74406eda4f70d56e0b40d2a8ec8f03a0baf67",
    "signature": "0xe8a5886e36c79e2151252a2139969c5b1f58229cf308d2062803ca1178e330b42dae8e6c1180ecf5fa0e1c8a1b36a505ee4d009f24f7b95e0b43e428825e670a1c",
    "signer": "0x7FCffbc9FB7516A6453F59c5b9918Ea8A7EB33eb",
    "userId": "502388335"
  }
}