{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "356137",
    "entityType": "User",
    "nonce": "0xb27f912fde361aca32f2d3acbe141abce35ac9a7221b25ff074c2a82c9c9a8b2",
    "signature": "0xd8132f0c4363edc91121f62db661ec2a478b963e4ff0d61d6bd5dbeea660b93b678bfcf98bd675b57927588a9f222f252a39bbedbf3f0c8017262e53ba7b925d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}