{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "679513519",
    "entityType": "User",
    "nonce": "0x9ee85f80db8de1c9f4928ece058db8a31d05e2eb7fc2e9375c3c193defe3f330",
    "signature": "0x2e52ec5bc836b0d2258a969cf333b0013145a5d8be726ac54b95f73144b2e05f2fdfe642ae67cd6d0c9b756a285fc14b8db496443048b8a817e8feee68ec476c1c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}