{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144284869",
    "entityType": "User",
    "nonce": "0x67d59e6b0e5955ff39a6788b571cfd7cc6753363f0692cae5e8aeb8a5b9243c0",
    "signature": "0x95bc353bba2e059107b99e105e38c86915bf59b94f99d86235d5b204db54255324db4e4885efe28df303a3067290c11e43bab9bc75726736ca8e8e4b595c33841b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}