{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa3581d5f813d36f90ab3bcf53ad34ac7ec6549411083e832b1b4e9abf7be9857",
    "signature": "0xd267cd8a772e1447e675e7f67cf8a07713752c77df3623e25ebce15b757072ae092b9f943e001dabbaa0e2fa8c735aa6966cd3c5de27cbee4042af9b2db98d561c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}