{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306899182",
    "entityType": "User",
    "nonce": "0x6ccb0e155a9150782e4b7af4aa4d44dae402060951a169807607e00433b69b07",
    "signature": "0xc820629c5a187638e06b60c80a29d8f0d79a3de23c710538a1b857c159b588ae33046379110cc49b8141a9de7be4f84d5893a86f460cd7b51fa20e240deb97521c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}