{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665370465",
    "entityType": "User",
    "nonce": "0x605a293bfecaedf8f4118e875fd0328afe6af687747eb0a33644a1328692df34",
    "signature": "0x78bcbe5554a453f2687dddb514d543e47f9382eee42486c4f5ce3513652bd08f02bbbb13252592ec09860f2db32e247ab03bc4b1b7835be10fd77780d629144a1c",
    "signer": "0xd6F1269ac846201d7f6d5574279594D67A06bBb2",
    "userId": "624634439"
  }
}