{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967215477",
    "entityType": "User",
    "nonce": "0x84fd078c859bec65cc063bca8dfeb4c867cc005b4ebcbc6eae9b85460263a763",
    "signature": "0x93e754140e094f07a7e37e9d4ed923032590f2639b4774e2597b38f7cd750d5475d26908180f85b8b3c891fbf3e531d61f6775dcc8ab6676a0e6f97088c48e091c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}