{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298766",
    "entityType": "User",
    "nonce": "0x73f726d35673b4b34decfe150bf6636519c6385966143bee65be272eb942a809",
    "signature": "0xa89be8742f00e261113576bfea4ca55f81d5288b1700592fd5952ad1f974e8132ee3f23d87ff4ec4ce9b9b6f67953c902325cda5d78b13fa48cb66eda0c784921c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}