{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "290065",
    "entityType": "User",
    "nonce": "0x727131ee379e84e661a5a5040816dfb7e8daaf3957a076089cfe85497bc93c8c",
    "signature": "0x585b3ebd6b43a1e9d11dae961d5f52332847f15c7b4561583d319e24a872dcfc074a8ad571d693c01910efac77eadc957ff42eb17b4afe939e0b6dc93696f4c41b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}