{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979647385",
    "entityType": "User",
    "nonce": "0x930d3b5eb625d0936db3ad07bf2664d03681e551137a523b1729519f09a02e7a",
    "signature": "0x8e102d30724c0011d5c2a468f0e78306dfa9406eac68f1721d011e17d97cfa60118a3fcc22bd67968538f4d27a3ed7d64c4bf3f3e4d8bd991167471b67d56aef1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}