{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37122",
    "entityType": "User",
    "nonce": "0x5f1e7428f148dd66d665508fa34f6c5e65832925bfda89d98e8ee5f5bfcc544d",
    "signature": "0x64d3d5aefa071159ad24906de6efd94f4447613cf005c39f6341007c88b17bec40928737f9defade84eff1c3cf649807e7b5e166d8c82272f48b1e2d945174191c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}