{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217600",
    "entityType": "User",
    "nonce": "0xb4efb799fe026c780a5f864504c0198aea7835305584503469d102047839f2f0",
    "signature": "0x6d1554e2ca35a02884096706fd1d49e5a23d7830ffbbce9cfaa35ea4433703132bfd2c624cc34c618d2f908c2b7dba4086e72a579f545b749c8a27314679f6211c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}