{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "213653",
    "entityType": "User",
    "nonce": "0xadccad58541b1237be6b5b4cb58092feb297bed78e9dbe68978dfb982c24f81a",
    "signature": "0x99fba33cb7326202371bb2e507dc690d600ddcb75cb5f6a2552f3805287049664b22f6d5225c03c4d38b9a56c61e087622465cea3b77c867c91a8dcec311a0301b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}