{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4bc29aaec07446c5a76571f4bba838deaf3aa340a5210732ace9e39dd848a02e",
    "signature": "0xd3b563f06bcad68f231b5d952fe2ba993dfb9e18b51e191837b25f644e2171cf5ea7a328b1d806282940ab65c2396066e7bbe685acef52ba475479009242738a1c",
    "signer": "0xaFd161d820E995347aA8EDC1F836F1ffc660729A",
    "userId": "685507057"
  }
}