{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330379506",
    "entityType": "User",
    "nonce": "0xafbc2a39ffb538bb63f0c46088318f6c57c168a4876d63004f5e48343bfbffb9",
    "signature": "0x5cb995aab6bf242eab3fb38061a072a0ea0d2b673ceaea6281dabc6d4bfbf0115712e3d16865d0358b53647a5b999b99557500c2a954e7d183d84cb9f84a00cb1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}