{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "660409326",
    "entityType": "User",
    "nonce": "0xd70e382ecee34aeb6892c9ecfed20c431a733821be78359a916e6a85e1d8d5fe",
    "signature": "0x3a451f2189df4bdd7cb3bda73de1593b41ae06e2940bb8d0cbee87f227086e48131b24e43d2f5e00621773078541395666e45661d5fb5dc97fec5e94063f3ee91b",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}