{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8ae3a7d5bbdbb711a34cdd5a57a3cb9fe5d2061d773a09fba7100b79e3a16cd5",
    "signature": "0xec74086407ba7c97fdaa24239d61c74f2b70c90f25dae88c3405716f7700d36d7c33b381aa623ffb37e7a31989acdc3283d7761a45bec236a2dc2703f9ebd42e1c",
    "signer": "0x6F6826e2AAe720815B63697437D8A39B47d76D66",
    "userId": "879761069"
  }
}