{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66466703",
    "entityType": "User",
    "nonce": "0xe82c045584a79c1a0675c81bfef3dae925a3934b95ef99ef52ea5cfe6fbfcda0",
    "signature": "0xac95de7ff314f67df2e7e7669567ed87d1c7014d45368245c7c4a364dfd51e1c075f47030b714b17c63046bd248848dabb2b3314e6186e9dfd729413ca462a3a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}