{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x367676cb1db3d04ab854129ac73bae831e48375e7442af572c96d6145ebc65e2",
    "signature": "0x0172f7b4a22a88f9c5d1476e108b5ef2a66361c52e5ba5db171bc3936600fd3c3dd8ad8a457797676d9f89634d0f9926d0d195277d016805a12b4ecef74e626c1c",
    "signer": "0x58Fd15cF8652ad74664BE5E78b4D09ab32Ce73Bd",
    "userId": "6838510"
  }
}