{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43590",
    "entityType": "User",
    "nonce": "0x5965ee97037082844fd333a73d7f5af434b8533b03e5ecc33b10bc030d6c0f3e",
    "signature": "0x4445edc5e5d028136b7f4c60ed2f3d5c409b800744c2c196f7f5367c2a7a0ac9195cb309288d975705b61c678265c771ebfd81e71e8f1f5a9273afe154b19e4b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}