{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332970",
    "entityType": "User",
    "nonce": "0x5720f729a28acd7deecc9e9bfe1ac80deee43983c85d17b512be60480ef7aec3",
    "signature": "0xcaa3407aff1aa7fc0f67cf0238af30b66e3f424a5f34b5e585407c8f01ab703b244ac70a3c3881d346d7b5c3ea61879de3ba743ff9a4b75ff7071a61927d8cbe1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}