{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "627605",
    "entityType": "User",
    "nonce": "0xc45a19f92015d08fdd9f7cdc6987525457550024e73376ff2056c72bc8187c1b",
    "signature": "0x6080f693dd9e49ef3c179312981da9251504df85dc4f0be062f5a99f156e3f945b1bf2d33185f8f328469807fa595bd48fc0ef1dc6fd5d3ab0a426e19090e0bd1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}