{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "786521802",
    "entityType": "User",
    "nonce": "0x1248bf05af29c094d237bb59b767629259a0914df1ddfdbf7c6b243015b19894",
    "signature": "0x4a03d789245e7d5d3791ca002101fb272c60d26a2b26f83fc3dc2e3b3c50275c790107b36f71688046c4ce8399fe7ecf91ec965331e0065dde99887b777f1fc01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}