{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183245",
    "entityType": "User",
    "nonce": "0xcf233b20d67103b646a9aa096d1781aa1ac4c5b2314990607901c72455c854b8",
    "signature": "0xf4b64e3aba81d9d84d10ea75c34d4700daf5f9cd97a33815967392a4ce31f32f4b489de86b279fb61345a51b512d6634a1bfe0eba5738eebfff8a2f481ccd1821c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}