{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123836",
    "entityType": "User",
    "nonce": "0x1168fd2be4f3bf286db7c2f53473449ae53583f0ecbdb4e3989806c0e423c67e",
    "signature": "0x357ae63db261fbd30d60b82f9d0895b8a792dcbe01f2071c90df83df2ccb57cd67224d158488e4377431bb327bd29acf54bb65ebb359e11b1a44b104f368be4e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}