{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x3ce007a5e5cb58a1e277a68de8375ec5bb2ffea973bcfe680d40e7c767baed89",
    "signature": "0x16a4b11e9eb52106d3ddf02c80525d195b9f5e7347a09bf65758cb2cf7c803a24f38d8dd445a823295c998fa7a20a50b9ea95595378498562b64cdc1e547c2671c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}