{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138040",
    "entityType": "User",
    "nonce": "0xea8860219febdc46bbf30a100948025ab1df988bb18b816cee846e25bb9eac9a",
    "signature": "0x174d4d573816c3790150062f6ed54591409d8d92725955a294058f7947569fed30cd0fcb7f8683f68da54781d5670e659f1ed1626a83f850ba7a718b8ac322771c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}