{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106975",
    "entityType": "User",
    "nonce": "0x1b3723d3375144037f098c517d0e1244d5769892ba36a10f2642cec8a08f77ac",
    "signature": "0xdbeb759ad33f445a73c98791dbd253e04b99f84b49e238c61937a2cda17e29c82eb37b9eca5100122b0d008e8131935d82ad9d30001c76c122f248fa910a772e1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}