{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146074",
    "entityType": "User",
    "nonce": "0x0c39678457373d5699f6beb4c03a0010ad15acf91094892a43e6d00997fb10e9",
    "signature": "0x378eb99016cf834cc1b96c28280c486d7522962eadea98e8ee90a30cde8d36312f4a9f4609a1554183ff2155f502fe9f6c8a28c65e1d7add4bf696691615c18a1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}