{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x32cb55058016f15fba1bd477175fc02e44b2841f9fc18f16d9652315098ceb8e",
    "signature": "0x75c037553e67545f82293024b8f6db6446b556ac7f040cd8b2d3fe7ef912086c1eb723ca43f99fc4c6e26a839dea03d3bd5187999ab7ec82b1def14128976d2c1c",
    "signer": "0x9c0E158fd6a79ba8384938c72F34b5D765d2A9Df",
    "userId": "178678516"
  }
}