{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0aca5b37a116d1101fdd813890e6ab14559301cb0cddf68f84fb5512d22d0443",
    "signature": "0xc6519fa6bf8a97debb8ae63c3679c8f311350a9b141dd4464bd377c8aa9c05db644e3d080efbb1accbe6c87fea216c471cf24520b6349e8a4fa6896c084f4b911b",
    "signer": "0xC9a906712000b00094119072298fe54870c6D589",
    "userId": "84274116"
  }
}