{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x9cef36a881665840632cd15880ca3ac751069d2e0beee20f00e7d95bc4a8c6b7",
    "signature": "0x002b15e5f9741af68204e8dd5e4859338f66784a4e66de22cfc74581da02a1fa53fe720c0754fa5ad97c4edd37d6cf5b792579ee0ed22e5787f83f0d488854a51c",
    "signer": "0x4810fE66B3A42DA4cb34b622aD9A069C293c6b86",
    "userId": "445042807"
  }
}