{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57693",
    "entityType": "User",
    "nonce": "0xc5a47c1fc73512ca242e6b1e3c3d8c3df420828674e75c355faeedd03fa512ba",
    "signature": "0xda61406b13be4adaf9e13f0c5c929e665997f2ed0ea9f8cea6da40b4edf77a534a469b437e8c8f60d33bc9fac66dc0656c405a13c306a967ee8738ab9890643b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}