{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "588881449",
    "entityType": "User",
    "nonce": "0x44552a95eb4afa1c2a67a7ed5f49d3a05ee3f97db2ed4f930160d5ad3923cb65",
    "signature": "0x7096b3c4e01fe6aacb0aac0a930f717eadcc0ad97289eb360201f4095840eee0100fc19924a14dbfe327a3b88e8337cc2cff1b39fe0c656cd7ed4c05664984611c",
    "signer": "0x37078959e8708e75303c5386562E052FCE3c1B1C",
    "userId": "446684277"
  }
}