{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486278401",
    "entityType": "User",
    "nonce": "0xa50c45b191ee2a800b1664fe8af07c405b3de84c52ca0396ca04e616a79a6ed3",
    "signature": "0x96ce1ec164f6416a3b28f8e35c213060fd3b1a38c827dbe89c435637d179246a2cd0dd55aa134acf728918597f3d3d2defd6bca5f07013a7ed42cbed0958f5df1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}