{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x00f38dd3be833262cd4936b6a24ae29334e1481ea212ceb671ced726f2da3c67",
    "signature": "0xf24b3f3776eac1b9b8d065f1f02c8a3eb44f79b4a8311c7918147600494bcd9239197e65f8f0dac2478940ce49c524b96e0cfa7077c0eb9732e92f4df15eb66e1c",
    "signer": "0x9dAf5E6319eF8bDB6699d476331DBcE1DBb00A37",
    "userId": "956143833"
  }
}