{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xd83ad2d6c47f859bfe61f606fef6eab4238081fff340b397756b6372fd15a03f",
    "signature": "0xd20f6b3cb07ccd019c4644b331bd819993bcc58711ccd898a4deb9c0818132dc0fb05cde35c08c7b7cbd502e3c1fb963d869d02497e33c9c4e1626346764c3bc1b",
    "signer": "0x4Aa8154A33F33394BA8De574d71aC98Ba6A47D5a",
    "userId": "645720561"
  }
}