{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xec0e2034b1c39c2f22f1d95f06a247de5da13648a580763abc936bb4add20866",
    "signature": "0x292d419f5a4413b26d4ced4f4ab9dda0ce2292e90898a71eef19dfa2d95410cb5c90e95de98c0a04b83877b8954dfa071ac40ed68db9f062ef3b5259bbf10f951b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}