{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "560200901",
    "entityType": "User",
    "nonce": "0x4fb381e7181e80d87926128c6678f325c27761493132652b458ff24dc779b8f6",
    "signature": "0x648df5d64918655bdf66c8267404a598d85a13ab69eded8175dae985930074a47224f3bf105bc9aea3a6e5413ec2a74fd842e59e50840da66efff99b6ee278351c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}