{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194109",
    "entityType": "User",
    "nonce": "0x08eb3b2a136303a7b5b34230ddf848cee350e756c6ca565bc54103907e4d3121",
    "signature": "0x90be3165f0519d2b4e25a529c7bfb1a9c9b276626582528008e124521b1e609e6356000d82d06d99df69f34bf901522e196a43d374a80cd8eca5099165515d0b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}