{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e6bb1b78711b0411b8ab3ba7d4e0e73d191e250a77b7afb49efbae3c3ae9625",
    "signature": "0xc13363cc8b951396508ccdcb19e2a846e8d7c715b6e8426300b7bdcc368207256254b4a65f9e186552b1c83c82b96f6fa1abefb897ae2cc8ac7e7d2953a0630d1c",
    "signer": "0xb11A87421a60283b875d2F958D27356167224eF2",
    "userId": "858465138"
  }
}