{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373165",
    "entityType": "User",
    "nonce": "0x8417e76b55a2a2fac444f7214b75513dc10d3bd1819c4cd73f84d442c7cd2cd5",
    "signature": "0xd3e81bef09de92895ade9b3927c6f8428d78c5bc92f228923844e96ddd1b510d5d8a991e1812759e8cf9c18a14729a0ec7bc9764c9ed3a99dde97a0bc7ef77721c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}