{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "479193",
    "entityType": "User",
    "nonce": "0x5e18f4b5ba5aa00214c6090665c5aa74e5ee613059ef6fd35ab65726e67cf994",
    "signature": "0xe9fd439c1bc89b83ffb88fc2294bfcd8bed868b48d234c5ea733e63396d396e4438cb3f3f293213bd4c84cc3b5951668f83a34ea8b471d4e3b631473aed114e91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}