{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "361136",
    "entityType": "User",
    "nonce": "0x49fdeaed66345245bc3cee38515a8dbf34e44b68a5913e978107e146a808ec66",
    "signature": "0x509e320b6aec27082c9dc99095dbe8a1b42618f3193a5a92b9856fd468d201703324dfdedd44541f84742828c00b89862eca64cea8be4c80c4ec87e5be4e6a781b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}