{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xccc9a85f9a76e9a54106bf5ca1c40f1b55c483bb47a2787a0ec2f732d023813c",
    "signature": "0xd6b107de17d840bd3bc13172472e3d94b8fca18fc4a7f00bfac9ce1e60800a9e303479a4e83135627d85a688f65b1f8a442cba17490538d1994e64a17e3c839f1b",
    "signer": "0xFfAc133950848F6349D296ab37c8750317D117a8",
    "userId": "807522243"
  }
}