{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313481598",
    "entityType": "User",
    "nonce": "0xe55c778489b9819c00e767d791d50cd396428ae48f52c7bc7f666240bbbbf420",
    "signature": "0xc00435efc7d6d64aa65bb703e971693aef3a0032086b82bdcc647cb2ff2f85284a76186688089509927b7403d4f4ef7cf4a7c2da2c5ade650ae4581bfabe7edb1c",
    "signer": "0x90CBf7c9BBF688fd9Fa4029B96e1BC32b270cA24",
    "userId": "711459379"
  }
}