{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333272",
    "entityType": "User",
    "nonce": "0xcc5a8c49e6df507c4a6a521c314a44ddfb9aefb06fcbf78cca209b927d6521b9",
    "signature": "0xbd998bb4e781d280aa449783bd74d4c893af2cfc784939e37b18413c485266f67206b85d8d6a75d53f1e68f72d6b5b5b74a118938c4f2d349f1f27b7b1ee33ff1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}