{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xea0cccdfda1f3bda8d80c7ad206b4a0834d83a385a590bb82263170aab1aaa09",
    "signature": "0x6463e437839ffeaa9bdebc6a531d31f35b350e4454eb9fc7184c9674a65aa1d679058eb50b66f52d5ed861e7805d07aaa937b6a5a7e81bc2016a4637d358a07d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}