{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1536",
    "entityType": "User",
    "nonce": "0x30a56eef3a3614c28fb9de0bf2a54c021219254ae320cbe645627e7e36871bc7",
    "signature": "0x5fcceef159855021eb57651f919514e1d5ff6793acb743a41d89acd9f9179ae20f824214b171b8316e7d0fc48577764e1f9f8a258c43782ed42ec24834b77ad01b",
    "signer": "0xF4D35113bf653395d3a48c106C53522928Ffbd1d",
    "userId": "159182864"
  }
}