{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d5a27753f8cc728f757ef30356e6f7bc09ff4a5ae57b9419e563d4b325082fc",
    "signature": "0xd44392f203ed14582083c64409d254c9e83e7c6689426f66c23fce9e178989220cdfd2fdd1b1840592203e48358047d1c78807a4e302f1119addb93b7763f8e91c",
    "signer": "0xE60E759A9F8Cd424a8C526810b53C8C164CeBd3B",
    "userId": "564211609"
  }
}