{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18168",
    "entityType": "User",
    "nonce": "0x91c2d3a8ba9d5a4e5fcc99f9766555ed7c1c0d3c352a625044c870cf40403dbb",
    "signature": "0x8662eba0125126fb2f2745fff6f08d832753a1334f48e490daeeca016ae8e3af64dbd713e69623f47087b5a7f90b392253b28622aaa7acc585abc4f8822f16531c",
    "signer": "0xb4069BdA5a7607EE958950229A03ff89Daa817d8",
    "userId": "611142471"
  }
}