{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x00a2b101c530cea09009b5288086d446e4ca8fcfe7ffbe63168df4eccccff213",
    "signature": "0x1914d794e71f40907587e3d03176a4038132ca2e2bd87d076b499629eacba5e275fad82c122bc9836654cbd8574c6a63c81aae4960a35fc579962b6adc04161f1c",
    "signer": "0xb9E2EAf5dDf41Ad5Aa821ca9A0194a2D0aF7bD37",
    "userId": "655908934"
  }
}