{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb602a1cca93ab2a83a1eb79c8ce8c14984d9287eb993d60f5bb6548abf7d1763",
    "signature": "0x534fd1c2adb9125e680139fa188e7a1b2b96b8f94d77d5f2088407a675ab68d8785729b9948076c74b0351e760b8d2d332d5c2773243c87d6f49f0308665fcae1b",
    "signer": "0x7d1836Bbf040222af3fFb18D74acFE9485241C1d",
    "userId": "912728982"
  }
}