{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf07597fe1603d6253d0af0f20e149d313c350570d7321a7ee7f5a30fe4875399",
    "signature": "0xe1205b5678f25fcc5823f7ed525c2ea1a04c48e7635b3f0df53188db76632cac0831a9f7c6e3d2621bd295b9c60ceb6dcdd9f77e5793902bb253e0cbbeb7d11c1c",
    "signer": "0x1116A061F279e5d6Bf102d9d841BEC0961FbfDa0",
    "userId": "526538887"
  }
}