{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139944657",
    "entityType": "User",
    "nonce": "0x8d1a91f6d862c7a7b7ab9ad5ee16e07626ffcce66411ef066682ed87eb5a76c5",
    "signature": "0xd0d4bb34550a2af12037df9d2b306c932582d9c11eafc382f016fb3b704a6b9e4fd71d98c797ad5443d31d7450c6c1e31ae02a12c91c8e5974154ac5c83432771b",
    "signer": "0xb90dea25446900B58b936FB95262D7557e6115B7",
    "userId": "559908939"
  }
}