{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115511",
    "entityType": "User",
    "nonce": "0x7ee506eba1d4c59b8537975fedcc4cc69ff682a073b667ea6a84d1585700a320",
    "signature": "0x919a53a7442fbcaf4c818c4c1b0345ec9918043b7c63baa557f704edaf10cc916191564e5c55439bb3d27ca789988334ec039f56c582b0190f7df2ad127d0be31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}