{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373434",
    "entityType": "User",
    "nonce": "0x5d599c13b766de79392947e6d9914ee30d80d55291cd85953f7fc41457642caf",
    "signature": "0x6bd12654b88ccb33b4967569f7980fedc7c4d3a9e7bdc99750c9d6e442abbe465a5a86397bf7e6c581657e9be2551700128fcf314942f9c8c43553c62589d65d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}