{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x1804fde644c893f67b8506a06cacb82b1b5d0846282da02601522c99d4818629",
    "signature": "0x3d9f577222899e15f4af13d908a260152ca04289db44195db8d856793915545952e850ef935c0950551ef6a76aa28563139b37f008e78860b0143ec82247a5f71c",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}