{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2586",
    "entityType": "User",
    "nonce": "0x4ae1aa12647dfc4e6312370fe20222aa5e2a251c22825cda09a17f73dee95383",
    "signature": "0xaeab0519e7b4647ced08f0453ca7edd0aa75d43105298bc2893eaa9fe5e32af51e04554cc1dafbd44b021144b12bc1d9b9ff1bef0e5d09f48e7e00ba4fb7ddb51c",
    "signer": "0x16D3bf5a80bAfFB2f1550d49b1203D4CA532DA1C",
    "userId": "1994482"
  }
}