{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384214",
    "entityType": "User",
    "nonce": "0x2a6ed5d27275cb8f4e9f185f1f54a2a457c888cf0616cdf8bbb20a70a0392c59",
    "signature": "0xa7e752380d9a75dc6b56c23e3e17767e652054aed278969f1adfea9a4c219b6a0c75769b8654a84518cee1403bb7babaea271bc3c410ca29e3b8c5c9f94208ca1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}