{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x3b492adc76d316e71d8d0febc960835e91ac50651101caef18ee0e675eb4c63c",
    "signature": "0xefc369fa453a3bcf5f39ab0d67508b3f58f77ae8558c2ff912c244dba108fd8f26ec959b0cc0ed1d0ebc0359833668f0aa161ccac3d655e36b995fd1877d75a11c",
    "signer": "0xD7802a66Ed086bbc392702454BfD14ed84290503",
    "userId": "960393016"
  }
}