{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3458c3f022943a3dc1f292a5075495f4ab26bd96752ef38a7b65836f9f33addb",
    "signature": "0xb3c77d383a76114f77c30475ce41298b535f639dc3d736b6794acd2acf4960fc365200e7a8fa4fcdc21efd790ee2ef87772cfbd3d84b8fc5b40e6c20d275ba8f1b",
    "signer": "0xe146b51A629Fb0fD2E28314C333218882Ef67DF4",
    "userId": "255544284"
  }
}