{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x01c14af901f821a159b355159f04e71cc0d2e57359e4064114b8d5e313906f47",
    "signature": "0x85150e0a015fa0658666b1a154e36e30db0715428b1c27dbd289975c61973a641418a786be5b5f8562ab1043153f68d00c9e849d6c4ff4c4d69c0e178e1fd7141c",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}