{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa5f5798a374f7e131e4d64012e7014bf11c75bbab92550a975c9975573f47207",
    "signature": "0x99a928e076187cac54a13d4f92f7bf25f0b55e5685ccb1551ee1c62657b08ee8246f59f1cf1486bc0800837991c482a309486376d3d724d6c32566d7b6d6b4fc1c",
    "signer": "0x11e9561Abe720e2f13FC78C4Ed4e70bf56f61bF8",
    "userId": "167673268"
  }
}