{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xce84f45cbff3ab84e3ff5f15ec1e4ed9bd0ba6fa030f7cc8354c14e66535cb99",
    "signature": "0x6710d68fce7348fa40475b8e07e39b978a8cd3f5a647e1b3d726f27bc15629702bd819116958cde8ae4d9c2d6a9a9de21951204433c1adea80d58c1f4d21d3901c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}