{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12",
    "entityType": "User",
    "nonce": "0x56e44ae30275f98388a3db48d748514793ae72db72a2787ea6b1bc2de6d9a783",
    "signature": "0x1324d890c6de8de747cd6129d288c1fc8590beca3e3f0e8b8201e3583d434ebe5ef6e12c7415c3e541a131b427df00bfacde6545e2bcd9bf1c29182f1b4d02d21b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}