{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xccd5a3761b61923894e753b99fe067f0c2b96a0b3ece945947631e1c2b06afda",
    "signature": "0xff7bd8b6c508f48a318d38f3c0ed1d43eb6592a678912543c5443e78f3e00c556da465c17ded4651a48541c8e7af4b87a84c9c1a6057ba2b314e211dac25bf601c",
    "signer": "0x5a7f1166F6b15270d1F073Ce586a36066B225626",
    "userId": "115412780"
  }
}