{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297394",
    "entityType": "User",
    "nonce": "0x24e563b0d9d5fe06ac74573f4a09531f84bcbd97f4ec1d717fe98ba559de3b03",
    "signature": "0x9073a22e0865b0b5815b69254c51d7989991e1d50cd116057fde5107efa3c3a91a6a6ec435f79936d2d5f1def3d0eb2e693e8f7ca023f8ebf538adb21d5275891b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}