{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x7439f0fd2c6707282eb1dede1eb8834f5764c0d74b23dd31abf491a8182ffae7",
    "signature": "0xc9a89a50ba074626617452512b8634f337487ec8975ff8a2053d87524f41537d05ff93d6bc0cc3cc15fb86500142a289467ea34bdd8f46d45c7e3d35aa121fce1c",
    "signer": "0xd5beB2cB9Ce64124905342753B4C30243bBC9CAD",
    "userId": "364771949"
  }
}