{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6529",
    "entityType": "User",
    "nonce": "0xd3a509a85ae35c2143bcdc3d329432b49aa57bf8772122c140239ef19896cdb6",
    "signature": "0x4e47b5475edcd1016ffb84f08d55aec343c1a436f3cc28050fffcd5005ec7dcb7a50e60198c45292d01ee5dd4d1a357d435e0467d457b99e5cfb8d028996766c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}