{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "885639153",
    "entityType": "User",
    "nonce": "0x02ee8c5c8eeb61109bd5d5a7e39c92e6b8a374df3f4f0fe1ca72979305dff5fd",
    "signature": "0x92bd7fa8a5043721e81bf38809add16ea13f6e9b5f9079f894236f17fc987975530d0f736275a7ba69ef6ef29f262d95c9d0d234628374b3cfc3836817f67d9f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}