{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1655698",
    "entityType": "User",
    "nonce": "0x534acdfd55bc69033bd6620e47a12372a508bb7254cf9bd9f89068dc9bc6bc68",
    "signature": "0xe7ffbe411bc4e59a3e0bbbd6148c9a79f7b5c93db4c37e663f5c1cffcebeeaf061e9646619a41d7cf713b6ef53dc1ebbbd56d54866a9cfceb9ab92cb27a21c251b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}