{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377610060",
    "entityType": "User",
    "nonce": "0xce14828d456fe8fefb4fd73eba5214c871ffb13892d30ab828c517f29c46f3dd",
    "signature": "0xe0d7670c4e836653c6c523a43914ce23e017f4d8124bf7169fcd4b6ae26e1702124246c787f7b4901491fa49bdb83f224e8ec6ddd86db54cbddb9ebfbdbaa7d41b",
    "signer": "0x09Ed944A6653804DF5E864d5240c837F643E2c0F",
    "userId": "214509563"
  }
}