{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6e6fd628aa4bc68a34112ea59e18c607c6e77edb3187e0dfbd028e7baa96d7d1",
    "signature": "0x0462a635ca9b29a84ba0bd998422ea6230f8f4b8d608f1e91198597f2c47446853aa4ad6ea8e8900dccb6236e977824d14d4b86911e8eb54fa61bae5ed1220401b",
    "signer": "0xD6cb88a7DD0a1a267E97ca76ADc8C6734f00aDAB",
    "userId": "434726778"
  }
}