{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164512",
    "entityType": "User",
    "nonce": "0x5d99cf4d3169558ea444c44636fcd4ea585b54c4dc52c5482e9e1abe9d705cbd",
    "signature": "0x19953eff667db740ef05009f027b486984df451d884f14cf6f13d897014ccc7d5011392027a1b3553bc73b30e870355fe94c163971d009667e70f85fbe087fd01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}