{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374596",
    "entityType": "User",
    "nonce": "0x7e7c4c27c08941f10c8413160dc3d5436151ac2048fec49027ea906c25613828",
    "signature": "0x5494f26d67fcda5d859ec275d864d09ebe1bcede3e5364d0cc4cb6ac4d9c226604d0da41382c0130799c6e0626fb380bd63dbccaf1337bec7b18b362b816b8841c",
    "signer": "0xaa3bcf8712A3f5a178c83edE5e3DA745C257458e",
    "userId": "976266161"
  }
}