{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20583",
    "entityType": "User",
    "nonce": "0x3aa1c93d285369f001352ca62a51df0c4e16a68fa02c5732ec153f611ce07e51",
    "signature": "0x1bfc5e41648e0b4abb7f1a11b3090f3179930b64b9ac003f454d44ff1c9b4a6d5fcf0addc4702788ff7230eb32c81d0b10a7076d5a0012af172f46d4652e02f31c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}