{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfd5b7713d3f30708c6b38166f31651212da32d6d8dd2de5118b2eb0326464a09",
    "signature": "0xb8faf236b9c0ee80d300b3f597d272801a77d95183ce38e67ee408d8dcadf6ed6e82201605c5e62cb7639cea386ca2390a12b0742d7402d052ed43f1e05bee0d1b",
    "signer": "0xaF1b276dCEbca393AaE6eBf692fF6AA6c84d237f",
    "userId": "921618883"
  }
}