{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18985",
    "entityType": "User",
    "nonce": "0x8dc4a7e93806b4659f96b26ee1db4373a65bb80b165258489adf9c0a3caf9c3c",
    "signature": "0xc2e1994d21ec5e7225652ce3b57b5d84c534714ea40e0981bfcd8824d25104ae3032ff8e486503374514e17b543f40e2c45639d3ab27e7550a5cc13c05a891451c",
    "signer": "0x8c83aB7F6a7f7A93A7CeFeF6E16b212bA43529f5",
    "userId": "549340592"
  }
}