{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103686",
    "entityType": "User",
    "nonce": "0xd3e84dfb873423426d13952306eb4bbb5c6d295958aa8ac4b6b3b3743557d8d6",
    "signature": "0xc99a0ffa5d064b59c73a0e346f7230f652a503a8cb1701d818537a4cb07da23d47cead7cc4d0ec9ef868cf0e90f46c62b32d2d90174211b733af843e3c87c82a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}