{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136586",
    "entityType": "User",
    "nonce": "0xc7648ec2bc9b64009565d3b68cb07d423b923a175a02cda38ae45d98a5013443",
    "signature": "0x1a7943d6dcb64b226006fce5f831a6db7693bf4dc9f5570c2e93762d76de8add6b324933b97594bfe67e5d30e6a6a773959c6dc5501253b4bbfb6c4a3a2bdab91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}