{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe892f6449c9b81a728afe524c8cdd85aeec66cf6f69942d13c36c64f9f5bf8a5",
    "signature": "0xc2b5574518f4b500b6ad13cd492cb8023beb0cfcbcb484fcc4087bfc6a3178022a186bce88324295ea0ef6625728b32958b0550ca73f007ac53e9105d71f79161c",
    "signer": "0xDcd7AB2467fbFAb4CEa0deB7C00C86d5D89347cF",
    "userId": "897512779"
  }
}