{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16678",
    "entityType": "User",
    "nonce": "0x97f4afca37cb11a3467ad6c03035f41b2953193040d7c819dacacae8ba6d9e5b",
    "signature": "0x869eaea20b8269aacf36870160177cbb328fbcae8c048d5a4ec688d5f1876e1f026f705f84f9415f54e1e83e0dc54747fe589616e66ceb03ac787e8397ba6b981b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}