{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "782362",
    "entityType": "User",
    "nonce": "0x2ddb022d8c9af2089789602ca126ae591a194482b2a6fb119fedb39e1371b510",
    "signature": "0x4bd674419804b2a40c8fa0a66f138db6754a8c1bb39523251212423e67b53f972eeff7c2ba5b26d9495b8fdf67d3b03e3278512844d3952408236de3c2a62c051b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}