{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334749",
    "entityType": "User",
    "nonce": "0x066db2e1b765a77b7c838dc1d687553e336231e004fcfbd39ee122f91f4dd2ea",
    "signature": "0x59ad3c04582b8e07756411e79475b6358d8f12c8594f87c3e30f0bc071ff151775233f8a8fcd809f7f0423b8ea90deb4fbfb8136e1dda3c1a94059106c652da81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}