{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105287",
    "entityType": "User",
    "nonce": "0x7febce285e95572a2ffd27f3515c2b848fc32d202b6a5d438d23ed27f163815a",
    "signature": "0x8ea738b4322bddb3856d47850d6171e6f641e6ea2cb36a8804865e8ec4cef7f336c01f78b146d3644a88f6f442ea672aab3e1e1c0cbfff154534450bbb13a3c11b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}