{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222370643",
    "entityType": "User",
    "nonce": "0xc7e5472928b8611ef1c13ee171c49ec09577a48c2d449f7b03586101f377a48c",
    "signature": "0xb4cdf3aba4c2d4b07fb4a75c68de738dbb5e59cea6c29a34f6eff11cc005d4fc3c0c800eced1a98159df58e42a63766147e3a8d0a0ec818bad41d3921bc076301b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}