{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "935104570",
    "entityType": "User",
    "nonce": "0xd640466f9c3b3ab2fa9a6adfae6034d74167db07976f9777bde9902b08bb0a71",
    "signature": "0x7d276073bbadb7b0a56c2b9231cd51eaa4b4f060dfd397c04b0ee8884022cf1c2dd748606650ed95b2a6a98e4cad3e048fd65fdbe7017eeec77626499b2bb2c71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}