{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995",
    "entityType": "User",
    "nonce": "0x5debff828107e9b926d5ce8b013d4e619f2b470e1e6496467404377ee1c229e9",
    "signature": "0x76c440c30cbd78043946f641b8f113c06ce58609d0707720076d9f778f0783d65d764a8e1eff78d811432a80d04b58dc78f671aa6fe534312895669c85d180691b",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}