{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104457",
    "entityType": "User",
    "nonce": "0x8e0b22997d0dc5d95f7925a1ce2a5c746f7c85883c7bab4a4e74bba78934a520",
    "signature": "0x970d604e3390a8b70a0c3bb35f628a72e108196ce65b19db1b4e7d0da4086f1b6861910611f8413568430fea231a74a95e81964c6e86d8e6f20d144a093bc39c1b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}