{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107971",
    "entityType": "User",
    "nonce": "0xd080ab7da55c1dbb517f3e1998a716a62a5ce0193a74173b25b0382af26eac21",
    "signature": "0xcdf4568a052b88bcaad67e389eaa92b1c01d0ba79611f8c8dfd33b31fdf5ca5138d51cfc737f546cb058590c5d4ac2119ddccc6057739d740874ccf000b24bbe1c",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}