{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "790143",
    "entityType": "User",
    "nonce": "0x99d31a9e33543a0e25af2431713ab6345352ed997b004e360bbc6c6ad27cba53",
    "signature": "0x78a0121acd7be43bb52f487d45b298e8c62435206a997aefe609d7e4b87296b10edb9b3204a0279f4a629be66e73dd51f62cde67d5ebb0c6d6992199bd5dae461c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}