{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "359819",
    "entityType": "User",
    "nonce": "0xbc1344d7b8de401a614e3d2ba3b30be663e6d0ba661c5ab077cd1dbaa4ee411a",
    "signature": "0x8e72d12384ce1b54071caa5d10ef08de140fcc05974ef16bd1c877f5847241ce083b9e343a933a3bb51aff2b2372abe339f971053c2ffc2db9368dc4cbd472611c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}