{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x55f3df1ae3d827ec2c2a95ab910668585dec212a682f5b58f7859ffa44f2caff",
    "signature": "0x31eac1deea3681f321e1ef5b0a4adcfa11679170c8de12bb2b8b56bc1af09881313403b1ddac176e879a569275de5ec9e2fa123876f76d4d8e22b595851e69751c",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}