{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987195",
    "entityType": "User",
    "nonce": "0xba5c28858308a75343680effba8c8dad89a70ecd7d42f2c97509a93ab4feab54",
    "signature": "0x7c23a78f5355bfb854860e8d2aabc789cbe82fad7bf31036cf2723c5d02212702f754ee76801e48d8cb88091eaa614196e69fb7561de199b6d7e3298341512dc1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}