{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "255385",
    "entityType": "User",
    "nonce": "0x580c601ddc4fdf50244e68262efaadac8b850ca447bf004eae5647362ea0c664",
    "signature": "0x9dce6806f1e98d68afa7701f0652006c07d2cc08f8ed4ae6c305c79ba2d443b275fa740f68aff301fa738cd2630dab0fc6490b4fd9e42b0c7d1ca1f05aa820111b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}