{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "911954760",
    "entityType": "User",
    "nonce": "0x3de74b842dda9168ffeb9f07be58538b4ef47f282f3ebaf22fa2f23f48b68cca",
    "signature": "0xbbccbf8dd8a87542426bf46c1e8724b8ba3ccb853ff777681fb92d27933585563e3c05593e06c0a476a3c6454860a3ddc780ce1afa98e2b9a67c0d784b1bed081b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}