{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5da611512d1c989c36811db773e1c18aa27a0b175a4668c021170fdda2c834d",
    "signature": "0xf45ec2fd8c558c024290b2d11d653712cbc0faca5bfea7e66750439205e4bcef1d3122faee3ccdd9199f7c1767c79990c89c17239fe3d3ccb33c1dcf587c11fe1b",
    "signer": "0xa9C1a2BDeD896d3f122E366aB647BF1C74C00eBA",
    "userId": "209707164"
  }
}