{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871535685",
    "entityType": "User",
    "nonce": "0xf850a3738460c8107fd8a56164f0d69a0a6dd988a2f3e8cc14a2d893ca2d1dce",
    "signature": "0x2011314037d0394e4e12d8697bfecb00ebed1edfcb024b43341f87191375cbd34dada76583b3854de80c34ad12e48415422189cf177e9a9fe1bd130cd9350f6d1b",
    "signer": "0x98136cbaDcE798Fbbaffd4E4Df4EbDfC381aECA1",
    "userId": "844588084"
  }
}