{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "336371",
    "entityType": "User",
    "nonce": "0xe46d2c6524083434b7ceac02ec6088de09ffacfff2ce995c305b097996afe9ac",
    "signature": "0x5d7f3cfcbbf0439f132d02de117c91ddb435edaecec1fab24135b8c801d06fc75ecbec6c113a30702a716bb7a3a0d76e3a916727131f672bbb2a2e1a398611571b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}