{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487755133",
    "entityType": "User",
    "nonce": "0xdbbaae6ccc8cc2d1cfe007d7632ca8f8cf3798084096b479abdc2908bcf1da24",
    "signature": "0x4cfe068b808cc942758de8fbafbec9b75dce0dd74b2ef50349c215b7c6aeb44316b3f6d801d794311ec345a9bbeda1c65b0959458c3c3e307d08e3db860090351c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}