{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0xe91ce9cc2049e3a9a047e8b4a10bf80f57f664b015f20d3404c37fc54a27b148",
    "signature": "0x6e742126d8cf400fb881e38f57e6ae410c2c3d67aa3548c6dda981630441c43d674255457405d1ebfb6b7c759b99988ac9bb3ea4f32a218e2067736fe86cd90d1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}