{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f597ed66ec83d060eff90e2802c377659285a5179a3bb91da296a9cd7ce482d",
    "signature": "0x6e978687179049ec65590cb4c05b1dac0688b8b06cddd24b323a1a4c699e29bd515d21f3ce737f5ec0b1dccf29122f2cfa084f1b4e82da4fa1f2ebf7f4a088c91b",
    "signer": "0x79621848DfCcB269a5B938fc4f1000c9AFD98d29",
    "userId": "136287868"
  }
}