{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106406",
    "entityType": "User",
    "nonce": "0x880a2416de476dc74ef6a7453a2867b704c5a13773f42cd1ec89e5087f65fa06",
    "signature": "0x9516588152c248b3e92ed7618fd4f6729359e94db5dba8d9e337d8ac48a304eb635271d5096a0b3419220ffeaf42e47e17d903d9ad79d769910746583fcb8b2d1c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}