{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13721",
    "entityType": "User",
    "nonce": "0x547aba105828e2636454829b56f52d21f18501e634971ddc4eba6f9c21ac0e70",
    "signature": "0xb128ac2a1a5383189a9ea89dbbfb16d73445f313699e20f067e257b7dc79311b0ac5ade1f7c9419413b3e343f306e97163ebd4d8591ba51e7b63d93ef04641491b",
    "signer": "0x0Eb68d1ceacF37AbB0D48503E66b8fF2c06E2fdE",
    "userId": "747576419"
  }
}