{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x930fe94f913ba6c8f02dbfc83b3975a15cf8f221a721e5e84662d3e28cfa778b",
    "signature": "0xf048ded194c62805d08b08bb209480771d6e78a07b9d6a1c704ce9231e2711823b58beac66d264daf8418ac5853df27cee054e441647b7872db7a331d6e21fcf1b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}