{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72732",
    "entityType": "User",
    "nonce": "0xfdda7cd271f379a52cb7bc4333e6dcd1247e9dde8b22bfad84fd2758411de389",
    "signature": "0xff4d3fc201603de8a4db82855963895c26f3cfbe8b337fb5a6e79277c7f6769267ebd2d605fa3430f0e914ef1a80874ebaf013d44fc61fdd8fa2e6bc2cb439c81c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}