{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871579076",
    "entityType": "User",
    "nonce": "0x7ff13dc6e557061bfc3aa0fa1e72c1b77be637bb354cff37594d881e1e0cdb05",
    "signature": "0xba10183fca08dec394b90477e3578b57e03cfd9fa32f78500b8da9d561e739cb51103ca157d71af52109259d452e4ac6f74b9deffbcf83df59eb8493499f56ba1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}