{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdfe46e63c138b16f0b03a6ba6af9c9f41c49e027bd6cfea609e3b8887695b718",
    "signature": "0xb6e6d3524ea7bd5a6c7ca7428eb12a78aaf1d1d5e8177589e5e7fe9527321a365f9985e42a89f1064b903c8816a6bcdfb8d24ee536666721e200b97fa16087a71b",
    "signer": "0x6f689b25d1130eFD186fA8030CBd1Ad6f23cC51c",
    "userId": "783764624"
  }
}