{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709633854",
    "entityType": "User",
    "nonce": "0x3333aa40f30d97d9fa33dec8160db3b648f8f2241d5929016a10e8a589ab2f5a",
    "signature": "0xfb952b659124160f5847c5a9ce6ddda68a845bb2b4e3520b8aa57dbd4969c0a877a25dce8cd09d387286754912b154b3732c9408afd837b307d6ce2b170f27031b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}