{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "825837303",
    "entityType": "User",
    "nonce": "0x9034ff20ce193636d026b0bd452fc03adc487c30f09c7cbc2a91952405b4bd2d",
    "signature": "0xb9cf486da36311b841d1a164378402900acfe7c726102bc6b532af10f737a42c7868c743a7791d30f26d4a0db970ea3acd3e8b5b3be7a043005533605e97d00b1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}