{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe557985bf2713fee3add3c8856a43decc8b3d072a9c608517412ff44b35af436",
    "signature": "0x5868181ee2d479277f745cf78632823030ddbdab33f215b788429a2fb3242e137da0e2f0990bd801e67ba7f98c10eba1653bfde52b53ad123da48449181314d01b",
    "signer": "0x641D58d14cccB895cC85f210F1CD2B998A692F67",
    "userId": "308555958"
  }
}