{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80015765",
    "entityType": "User",
    "nonce": "0xe1fbfd16e7f2f94725c9b3cfc8b4d8edcb78e4263db742e7ff7c63b377e7d792",
    "signature": "0x43f91cf8b33b8d650961dd58ca971ac6e1c05cecf06207ca8097560047476bc954e4869fdcebec0e4ad3374b4877000a7962816a6f208bf094b669ac98616d401b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}