{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5819",
    "entityType": "User",
    "nonce": "0x15b81f39d7cd598ac0ee5d7680cb79deeb5decd5a628a815876b5fbd2d3f40c6",
    "signature": "0x65ecf0fa353ebd82d813282cda749cb58a786614a8dbbd3438fc5e4634fc2e0918d2db27d498e30a67dd47bb33a6d93d40f85d6c4949b76e43973dab8b5c330a1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}