{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100790",
    "entityType": "User",
    "nonce": "0xc1c5a2da30d18ef8b1ae90ef6fc07c1963581507cfeff8db0b6f3ca6011f599b",
    "signature": "0x1f2d5b630dae189affe6c051b1cb44bcf527da83a33e22279ae505d06afa75210d97c00af900b7c57eae2e5aaae46349ed16604115cfe74f9ff63725dd8474f61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}