{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x7a8347b0fd224eb8efd59c76a59d744744d40c96b733dee6268aec7fce4b7e6c",
    "signature": "0xcc3705aa94241b1799872cedee9b69f0a3043d07cf90680cf2a06f540c054a8139e572855096ced21048a4c197afdf8ae58ac3b5a68a11dedfaae4fbbafbce781c",
    "signer": "0x50f6CF4Abb23DF8B26e12391A5C15e82F15d7Cc0",
    "userId": "644846042"
  }
}