{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12416",
    "entityType": "User",
    "nonce": "0xdf8d17c866755d9743a5d90f49ed5138dc2d638f4fc891114f0655daebbb6b5e",
    "signature": "0xc6f0e5d466a8dc01f75d05f8173f19e74a846e12a241dd408f5335ea0a7ed0bf3a313b44b54cef230e80ecfc60ae455186bd5b186edff74063891c91cd3668851c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}