{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x29ecc30ac4520e0032820b297f181172c6451cfd9f3f490d6ee1aab7d17f41dd",
    "signature": "0x8ead50b6841933c0a36b929a2542637ddf742e4297f921f709d5f352ac9afad17f19536228cf3302c6c656815f770d5b31c12c264fdd23616912e21341e342351b",
    "signer": "0x5038fc0cAFD4eb8310afc265D6fD7e9194165be4",
    "userId": "636912375"
  }
}