{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27447",
    "entityType": "User",
    "nonce": "0x140423e73295fa7ddc18ad0e56573b16a2be065399ed5ffe7b1ec5d8e6beef0a",
    "signature": "0xe78defbd062020744afc479155a4d3d6b42b23c44c5bd298c594ace5f4cbe02342b5a81f9b3cd67b201c2234b0b08dd8d18dcf62e48d6b630f73e7a708e4b5451b",
    "signer": "0x149dB7F9Bc7734a6AB271f952D733afb4E82d040",
    "userId": "740584619"
  }
}