{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135001920",
    "entityType": "User",
    "nonce": "0xe755f2b4e589a8ec073b69be630029eea69d5bc7d8e9e911a1c65c0bae5b736d",
    "signature": "0x005616e0977e7a469ca0984bac401122818614850b45ddfc79353c646a73d76278a494e9af01cf484d856445a128dcddfd1d62a16cfecf5b198c53fe41b7e2ac1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}