{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "727829083",
    "entityType": "User",
    "nonce": "0x0740c1a0444131bf6ba10b651bc5452f542dd5c59d8772780e5a014a83f9a954",
    "signature": "0x09842690166ed1d8b23598e489522a8cdcf186f815ff3d4e5cf9fd8c5de0dcda76c8e42051d1a357ba63da61d31fed8b66a7992dfbcb140425ca3e8709dac3341b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}