{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954117045",
    "entityType": "User",
    "nonce": "0x18294cc5326d7de2fa5013dab39854b43fe67e9d88d562be4805c77bbaf72922",
    "signature": "0x300ac474aa1a1ef2635ffe7fbd552efd2ad85816688e185ca9802368d0b095c43d916d4bec3e897f64a4da3e8b88843d2e33f5fe3a24bc6dbaf8d37083fe6e8a1b",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}