{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394198770",
    "entityType": "User",
    "nonce": "0x76b8b16556daf80c25e540cceccce2a09c90fbe6a907f0e96176fc55d5890950",
    "signature": "0x9bedf5840c2c92fbfdde184ed2a2de86e070f5a5d07a38df91c325765d14038e79f774b366358fbc601b070d24c82ec411b5fa1aa76376a40dbdaabdb16628671b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}