{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3c435cb5b6e9c82852783991e1a38bb2ee3125fdd53ed165dd4309d99bcd914b",
    "signature": "0x87fbd237f6e1c8e12b72bd75c79acd5cf916723151d6c8cb4f7be6c012df6b194bbe1ef7439b4cd68da7990f056e9095774cc6029d064d5035872ccc071f51c41b",
    "signer": "0x80AC38525e432888f1bE1e2e6DDffB956029985E",
    "userId": "523003328"
  }
}