{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146556794",
    "entityType": "User",
    "nonce": "0x8e78c37f4530a09f51dcd31949766dd5bfd4e53484541c76ad7f6535bf33bb72",
    "signature": "0xe357f18c4823d507088547a9a73a9172abfa8c97793ec8376e615f3b754027e1737c2611af0846e8f0ec7aff525f1aa15e5e1286496c069eb28fbdb1cd97f9af1c",
    "signer": "0x4D1C1479Dbb64c1871A5FE1FC31e11BA85e92656",
    "userId": "757004091"
  }
}