{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64310",
    "entityType": "User",
    "nonce": "0x23011601ebea5b3066297be534ac9d4ad2c125d7b959c7c7d7920ea1fe1377a9",
    "signature": "0x95dcb622e5cff8edbaaf58a41a2d1eeb32a5ac0a3ecee820c9443a7a3541d0407f42ff7589b7e8cc4c1df59f3148dcf1898a6e05080b6baa73a0ce3eccd3e00f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}