{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327722",
    "entityType": "User",
    "nonce": "0xf455db1bdb14ed0fce51c6115dfd69b4adfe07ea044cad3b3c8b70326e463f61",
    "signature": "0xeb38894c64d8a4c61e2fd876e8607fa400616cd23619f07aaec84ac8ebc8d3e10cf12f4dd761620175bafff8238975513ad39aaf680e776c33acaa292c6ced8a1c",
    "signer": "0xfEe33BbF917E3f2286F5de91d6d332bdBe416C2e",
    "userId": "578271357"
  }
}