{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128777253",
    "entityType": "User",
    "nonce": "0x32896e15aeac99d06bd6d9525692f4564b834c97b51f89a3b797c27d2533a575",
    "signature": "0x472dc1011a503b637fd7cde8fe4f10937d415691de72836e64d03095097b36be7fe730f2dd22aa46ac0e56e3025779d14095651130b55dc3823e16970b98f2761b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}