{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7645",
    "entityType": "User",
    "nonce": "0xca4bb1f70b50eb25a97920a559084e6163b1cab480a9ae97510317f98560151f",
    "signature": "0xd60c67cafb816aa3ffabae7b7e5860e6755d4d1c206c89fd5a6c204bab49bc130910c04382e6672f17a4bcd6f885f5f0b4d56b62b66dc1f6879edfc0c7dffed21c",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}