{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x07d57d49e06680a1c79e18f18f2fc795eef8131711b2b59ac7089ef486a9f6a6",
    "signature": "0x6253898c7a849872fa5a06682296b39c04947240c31a305598bff304a4020ded19948149ad9b671554d150412e3d98a0ca231386b46503b1ee2a92fa51f1bca21b",
    "signer": "0x21e24f0BA4f4FD44d25aE2e07bBe13D15e18C565",
    "userId": "14452802"
  }
}