{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170256",
    "entityType": "User",
    "nonce": "0x991c49be324e8e4e0943b00e4b9b38f7102096cf26a5ad0f11e8a2acd9c077da",
    "signature": "0xd7cf7e93500d8a1ebf60ffe30c132db7e257bc6689cb254f2b6e82cd3e9b4dab431327b1163b0ed81983c3286d91190b63e2f531df8cb2439662f04fdde2e1b01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}