{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x52e89bb6a46421d382b2d4b0f30fa8e9de73a19780b930c8bf4584a680b9b747",
    "signature": "0x69512efc134276bd4053b182ac346de53dd0bbadf0e7912b3166fd3c082706ca2cba8f4f1a4aebb77eaee3b714038e86a707f509898ac8705644f4ddc0b2c4c61b",
    "signer": "0x1Ee3946042387D5d41DFF1ba84E32C4330C5Ee1A",
    "userId": "218336246"
  }
}