{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "238712",
    "entityType": "User",
    "nonce": "0x90069aa4a26780425e79fbfb8d9f04b0b8b60dc6ae842fa7d7d4e007d64094d3",
    "signature": "0x5379af0c4429626972dcb18064d97de782cda1ccbe684a45aa0eee38ca4628a51cd9fd4c6d013eddfe46b0eb5e36d36d00d239859114388af68d960fe26700241b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}