{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a0dfb1e7059419ccc1751715ab35ccce5ba1f6f1fc18b0c1d11e5da4880882f",
    "signature": "0x26c2d0dd650e5c479c06f98d5de453c876056751386a587cbfb5927053529b553c4965bff882d5593340ab05f2507c726bc6e3e581e683abb1b88f8e60d63f641c",
    "signer": "0x54bd7Aea6E527d7566Cdf4d2e6A80c68c55737B9",
    "userId": "359006068"
  }
}