{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6915",
    "entityType": "User",
    "nonce": "0x82dd1f807bee19a20053e3ba7f5fb7329a865156546bf8d6fd9825916e7c65e5",
    "signature": "0x651c1505076d7baee3ebed1585b99b6a116100b9ca80fdf4b4e2ea930ec7c64812213ef054bdda0e5527544d983ce07c58212dd3234a87d63b126666bc51a3ca1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}