{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51842",
    "entityType": "User",
    "nonce": "0xa9bc02995b6c1aaa98fd79e1d3900af09fa11ea7ce89e8537397cf98546418bc",
    "signature": "0xd4df8e218c0263e891d090c64cfd8a480e4a63edb3dbd5c87d1baa843e5d51cf2c749b377c3e8a72c85e72028025d07a6e551a159f2723766575dd4fd958dfe91b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}