{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341266",
    "entityType": "User",
    "nonce": "0x3ff59756c654c71b7ece56a2f35bc72492859c988c66a78b8ab4803ddced0acb",
    "signature": "0x8180ec7729fef7b1b1951544f95dcdef0be2a52c2fb8f71b24c4d069b6a687b71b47332e0bff1204500eb0da992877530717df69674b641b3cc0dce85b21b80e1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}