{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xf23b7d625c9bd515c2bb3d526bbe49b085bf720510786fe6e24bed8aec7900cc",
    "signature": "0x0c5def2f8dec578c020fe399d00c5bb4a2f0a8246a323c94f7a27652ada6897f092c793ebfe3e8fec80c239a355d2735e6ca551644f27b1a184e5c71b0f2de7a1c",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}