{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100276",
    "entityType": "User",
    "nonce": "0x5de8c56152dc9cbaca358f60cc40d05bd128cc561761384f89fbe2bd00365021",
    "signature": "0x0c97b9836a4232b97acd0991614dc4bac9c9f68a7ba82a757bd8a465658da70c5f6fcd8286cd2cee319bba41f848f114b2ecbafcedc0cd9ea4007b6bf91e0b041c",
    "signer": "0xA262fa1E6a4e2d4fD07d405D0572e986156e8e19",
    "userId": "16238"
  }
}