{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775393813",
    "entityType": "User",
    "nonce": "0x0ed97eb25d8d919ecc65243830588ab303b025bfbd5d4f55f06393477c11b29c",
    "signature": "0x87a0fc1aa8e270d717a4deec835437f44c091f06915ee14faf8f42722d6d23bf47095a30c43b28757592f7dee3798d229cf604ca28611410c1a9edbf0f15a3f81c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}