{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71498",
    "entityType": "User",
    "nonce": "0xbf850b2321de41fa3a59474b5435e90145582314418930bc40cacc3ee072e366",
    "signature": "0x1f49be3e44044fb3eed8c8200dd99ee8b74f779f1ac8d9d505797d4c72c30f15542e40fd1763a17e504c2a325ae11cfe68a070cbc7b3ba41a2b4c19ada6b6d591c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}