{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65508",
    "entityType": "User",
    "nonce": "0x814b66af971408dd175df9568d8686007c1439518db3eb81a50cea6169ade6dd",
    "signature": "0x7e61a244461220aade81c628425dddd654a59b1b1bafcf7403764f25840a46054fba45cd2d81312d0347e2075bbf1e0f5da39655218dc7729b41f7fd0c7e6ad91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}