{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2cda9b5a462cc59488d677c61e7153eb0774ae1ad64559ade4e67205f2cdc705",
    "signature": "0x039af8f6af3b2328a513745ffa4afe0308415be7e54655e7644e09645217445547757596a4b7d1f7469f1e6a6210e1a5f147f2bca1ec08310fc38b12ada1f6191c",
    "signer": "0xd62F2cE2B93f21842ee826E6e72Dea2bF6974647",
    "userId": "873875887"
  }
}