{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "787975550",
    "entityType": "User",
    "nonce": "0x153acfb68d1b4b38fa66bd5cc1d8464e51241cf88d04fee0b368d2487582642f",
    "signature": "0xeed9958c01d96027f4bc524cd72b4082074e4535b66ee2bb21ba760bf98db0b21f21ad6c7fd59f7f05cd6151e7ef8f386a1ad2b39dae16befecf411e805f82101b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}