{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708791248",
    "entityType": "User",
    "nonce": "0x8931b14c30f5c9a5076faaf87f767fe1075b53dd4096181454ab046b492dbe3e",
    "signature": "0x00ddd1e43b0bb48305bfc66e4d837e8b1eab677875e1005c3e147ef7bea269981433f56d7c9976306bd077251d489b6059e552c67ffd0c786542cb25ab622c531b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}