{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1045118954eec4bd1bb8b5129fc88355c077718299e36f5c7c25b0da3e96ef6b",
    "signature": "0x869ae4f65cf39a5134a15d3135fa03fc05a1b3054370b1495f19a449a715789905ec133c14b41b7643e46694ca7597c530348a03c93a5394c9148bfe28a257c31b",
    "signer": "0x649496D4Fad3F08291110883C2bB9dcd763CCcc2",
    "userId": "359303546"
  }
}