{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x91f5113c6f2b7aacb3fea03502ba0a440fa51b4b3fd26fe47f4eed5c69e40ea3",
    "signature": "0xfb9daae91e1709b2765a0e1cfc19624e68934695832b0c46d01335bfde5ee91c172b1959fde36cee4cd47762780552dd8fb7c0e9ada9d772637dce2528f4f3651b",
    "signer": "0xCCe749020E45FB96926be24f94FFA5f35e955e66",
    "userId": "810833505"
  }
}