{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x940463427acd661a128bee6ea5f9399da807dc5256243aa1e6178a8c595871a4",
    "signature": "0xe7bc4d7b86ad080241593c2539237e186845861b3114106a685de027ff0af626319443c79013c158d3c719b9263f0c51ba888680cea0a8755a440715ea327f9b1b",
    "signer": "0x5a2cbEc30A06cd84ff78BD5d16514Cb953D9758B",
    "userId": "41027023"
  }
}