{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189493",
    "entityType": "User",
    "nonce": "0x0ed643d8271ac41ff76afad857d13f050a8a6dc68425c39b007788035dcf1fde",
    "signature": "0x1da9cde5cabf0f9ce6c914f740ad1000a33c00962ae7026e9bcf7632e7baaaa253bfd60e7b97e1d0aca87f61c2d39be46a594a3c57887a98b2c16a8568c9b3a01c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}