{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463531545",
    "entityType": "User",
    "nonce": "0x1960f299edcbe6bbc01fb64656357865705db844429e0222969fa9d8cff55dbb",
    "signature": "0x988b39138ab53eb53b99737e76f165e9257a69de0ed03542da0cb3d7f765b3b314215d78a20fb32cc4b5b3989ea3e188b5700f919b277af4c1ea325cd65d45b21b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}