{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5e888dfaaf0d5b0748946c25edf7d5906b374c9251f0c09f5f582a4342126f64",
    "signature": "0xa9c08b87f4d9860fcf85ac041da90db4de4ca5edb6ef4747966a43ce56a65e3b14e1eb79bc4ab308908eccf37cab4ba8344e6f386b073419640bfe227fdcf2191c",
    "signer": "0xB58f3DDE7Ae5eDb334f20e807327D7340c720da2",
    "userId": "684920796"
  }
}