{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "567044766",
    "entityType": "User",
    "nonce": "0xf7c31e5f48ee5cfcbfa641ae0b3d572479e1fc74e05c7193b298a539a596454f",
    "signature": "0x0098fc05d8500f618d8310ca3ea872fb423eb71cdd4b9d92df614af0715779c7576bbe2885613b0791e1220b80d3ea7a033280367f3111c083ac02b86a9ad48b1b",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}