{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe55ca40c10e90df1f18caecbd73a0c39d82a4989e7e4a2c0fcfafb0c6a551cc6",
    "signature": "0x93b9f9e011720f00f55edcf0725d3dc544e399383296d75a0bc30f038120ad6327d222ce51281c46e60e8cd584ec5df400b4adc78dbc9b7611daef4d79f08c741b",
    "signer": "0xb9de00A4EE6BF9B02D55cB9baD4e80fC26cCfB8d",
    "userId": "144945188"
  }
}