{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897512779",
    "entityType": "User",
    "nonce": "0xce68b767126edc9aed3d9f06a9876c8a2e427d3553e0708f3bd429cfb241e265",
    "signature": "0xac26a25219f95f5b7ade5a5bde15a3039c7cca74e5a2015968c37d3e84bbc7ea2b7c188684c310ad1f8b037eb1352283e8c00adcb2ffcd8990b6150eb908c7ce1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}