{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0x3b5cb9b62f68b7ef72c6a4e790b54b104533fd7b53735f8ddad35bd397ef21c9",
    "signature": "0x8ebe6444f097180f257cf22b79431de5ca5a71bf2bd49a5669ce250aa069185c0f634661b7700384b3188c6d6083fb9ff226da2cb946ffa8213edd9f83e12a021b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}