{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x7dbf756ba9ad137a74e1b0120da138ce5c82804e101af2efd6026e58c817df1f",
    "signature": "0xc4460c3f42e2f01f5012eff6344e00f1a8c3817b801c09e1150776fe44e6722a51ee058ddd5b3a18197314ce7d31d7fc9632cc8b2cd6655529ad8421f4af7bc51b",
    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}