{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112438",
    "entityType": "User",
    "nonce": "0x9c487dd41753f44471b95e894eb95110dbf45cf50587d3d30e22d1340061494e",
    "signature": "0xb3bd331ba2fcf0f87d5041253b2f0bcd3c7416eed040e6692b1a835943d8915b6a4d8ce055723b05a37d82ea4a8364abd01db12784e7c754620c27503fd33eaa1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}