{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0x9e073b1c541687e21aab5da5bd3b42908f126189ddf4695a45d70ca41b778af5",
    "signature": "0xcd4e3773931729360b6f0309eceaf2fcac664912ffba0831cfa19ad6a2751a11616dcce37c507413e80814b7e6c4b74d2c44f8966ab7d144280beae5ff97511b1c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}