{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15113",
    "entityType": "User",
    "nonce": "0xec56b067dfb069c3eaecd468e98a2d37288519c64cf040107dcca0bc5a0e9278",
    "signature": "0xd6d995c8a37c2b5166902e2ce1bebee37329060e286864cab9b297a0a5f596c12c6c44919a56dd43486f43f768b22ec3bd2edb6c6db64113465b4f1ff10bb8d61c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}