{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48247",
    "entityType": "User",
    "nonce": "0xcfe187fb95fa349f67da4ab7916c643627f0268d8ac0d74da1116abb37f02de4",
    "signature": "0xd6b3873f536e86f81988bf658950d7328199ab828405f19973eaa21296f35f881caf80b09a78de591af8e354cffddcb7194e8187d796c45b4070d5eafb302e9a1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}