{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54225",
    "entityType": "User",
    "nonce": "0x9fde1dac39beb513ef2e6620f0ae64fcbd462ead22e90ca14d9504237f5c6a1d",
    "signature": "0x148b2c63615e2d16106184e907044d6889dbef9ee5669c0a43b6ae7b87b2e5e91e09eb6c7dabf494496ca73abc49366a813b34d7fa24d2c0e235c554c2f8979d1b",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}