{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313481598",
    "entityType": "User",
    "nonce": "0xa1d4240e3736977e15cd4586017705dc29887d8612af002063b67b0edea2a3f8",
    "signature": "0x0dcb0952e4cf5a67c36125b2dea3bc4994c7f6a868b18a8689be84092ebce3bb5ea24650193f47afe4ae89f376d8abbc2fed73c3c51e47336bc0e2217b2643391c",
    "signer": "0xdD8D81866F112Dea83D43640633fC95eD10D0519",
    "userId": "699478544"
  }
}