{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "852344394",
    "entityType": "User",
    "nonce": "0x56f8d97ccc3773971ec51e5295bcccd6efeb3f982c1fd4e306664aade2bdde96",
    "signature": "0xb922387e91099ed29bc42320378594c9c0d2e43b8a7969dee2cf0ebe728d254729ce71356b6993e12390768ee3f85604706b91ac12923a9b07bd34f63e3368521b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}