{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42996",
    "entityType": "User",
    "nonce": "0xf248b625c0175f4c506b4d5748f345b66c9426b1f7a46b467b286aad413dfcf9",
    "signature": "0x80bb9598dd59d892968a0787e6b5327bdeea3f875f2a29999bc9413ff7a7d76c327d2515d7f691139d300bcdbaba3329bbb3db74606c6bf84848d6fbf86768901c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}