{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562530159",
    "entityType": "User",
    "nonce": "0xea0741dea34371401d070da2f879f168e67ddb2963cc4dc1be98e135df32f27f",
    "signature": "0x972731076649ee4bd2c6984983a40c02322c0f1ca62af12748fc61a0d9d2f0ee1d5802d5e0440350ad1f2614330d8072ba6d36fd05fb0f2b0cbed5a4d351e81f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}