{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67558",
    "entityType": "User",
    "nonce": "0xe0f6d8e9820b04e1f15059dc0330ac163c008d1e035e2652a349dca5dd7481ae",
    "signature": "0xe6e89c7a9dfa2c5bc3175ac35edacbf32dbcff4ac9345ffaf05e68e6358eb79b39fbe2a9e87037ca136e9bd3f29ed166747f4a4a3266e75717ba5b2f02fb1c541b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}