{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463531545",
    "entityType": "User",
    "nonce": "0xe48e34a732873e72dce56e9565d96aacaa462bc5e46e18b41d2eb4f0d3586435",
    "signature": "0x0e3085cd6e2826d9ea8fe041681ba34f4d091e44aeb7c46b86e1cbf2371b5c4851ae5d825b193da5ccac9082fd101e0284cd5b20048a74bb7cc583b28ac7bba81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}