{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357010",
    "entityType": "User",
    "nonce": "0x4906485dd8ee278366e630a50aa28f9a0641f06e905c040ea3f47276b7755c66",
    "signature": "0x97725872a923cd9710b89b49570ce029ac963bf6be6d9c038fdee99c0391ad7230b278d2f8e33b3e628a04e1dda341244cb00fc2d6ab2471a300c0b5077e58a51b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}