{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x6662673b0871346386db4d614001048f781b19f60ad8f878114dcbe1f17085e7",
    "signature": "0x41798de65caccef4d1cd5e4c7c703e0c20cb69ae49aae59e1f92557db8dfc8dc2e4926b999c83e2b9723b0a4001e913c0d813b7e4e1594a63c7078a273fe9c301c",
    "signer": "0xca9222f1aedE81bB652753be5E233B18473E61E5",
    "userId": "9780"
  }
}