{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf11600c59e135d51cbb1695945373b4fc0e986b5b32255fe57c270426542b76c",
    "signature": "0x663006fe6c9176faf9c3b67a7cc308876c3c29810e953f3ea9c310f96398043924a10acfd74322903e8e65b5b1a0575f7c603b2e715f0f62edf40798703dc99f1c",
    "signer": "0xAd6164Ba35C7e17dCC1Ac6bF049DE92B4F318AC1",
    "userId": "486746705"
  }
}