{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708313645",
    "entityType": "User",
    "nonce": "0x3aa25b5d9d9d0ad3cbbdf7be64928547fad9bf0fc85cddf4151312fc25b66fa2",
    "signature": "0x87e71b6d6a2de8af545cf1b7c97ea8ec283eba98967ad61475cb6274ba228ac776a6bafba596c475cf89125c24639a6610ca6b78803f5184c1087a2685ac2f421b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}