{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37304",
    "entityType": "User",
    "nonce": "0x0c905ab9392fdc3c8d9b1e81aaef393de40433dca67272173816d4fcaad2f616",
    "signature": "0xc688811c04dbc295259b93ca5f44c5c0ebffa1a776ad04799e46be9d119395c718b498e21b641a309f06c6a966b136d0d3c0802dee6ea8de1531a5327ab757101b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}