{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "783705",
    "entityType": "User",
    "nonce": "0x60a07868e454b3fcfebdd1292e9d4e9306ee647c7003dd37629d84beffa50cca",
    "signature": "0x01eb993215985094f674a61a56ae1087f8179dbc48b26861bb21bb455c48b7d7234cb6ffb3b7f33aceb4f0e64a8b1404b85f8ec9ba398f97884447e064750d481c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}