{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145615",
    "entityType": "User",
    "nonce": "0x9d169bd536eb75f0874264105b2943ff40bba8d4fa64e525b90448ad7b9dc60e",
    "signature": "0xe743ead50a15cafcfdf8b8af98fca22f850294438f40f0683fac01f741bbe7bb39c4eb467a312b3da74a260862e03afd6defa396aea7a7628462d339dee8a45e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}