{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19151",
    "entityType": "User",
    "nonce": "0x8ddb284cf7839b5bed43e160371df3b47837bd2e2d64cad2f022e85f8485b885",
    "signature": "0xbaf0510c158955bba0cd6075ae782b69662cc8ae5e1e21dcf673f74e9064dd7e0a4b5a43c307210a70915a8baa8d16659d6e50a3532ec2b68a015c251234239e1c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}