{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73678",
    "entityType": "User",
    "nonce": "0x9da07f4488c27315a38029bafe5f01d221e6748d465e66d55372111fd4b51df5",
    "signature": "0x9ccf99c200d2f5096811b331f18e3a06c61df67cf4ad645e97dda1c67a0b369637ce568e60a3309683358b1226b703fda7363d6eefd1e7de629eb2f45305cd491b",
    "signer": "0xdfF45cF595BF4BB83c5dc28041d854710aA9CF7b",
    "userId": "380429513"
  }
}