{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x68fd30df04b9ee692514d50a62a798a65f0d6f34641651d563bb97cead6c3ca5",
    "signature": "0xf118329c96efef3586bcc75b023f7ce64d149beba35aa145e9334bdaf705b3d26365db547f2b0953f719c3d2e34b7807c3ee572089fb5dfee9793e8f87ae37aa1c",
    "signer": "0x883fa730a7cbE72C38fF2f171ef282394B714D19",
    "userId": "27346972"
  }
}