{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x4208119c154567fbe4d47f8fd0315066c9ebcc64b719291e2e3a02ac36730cbc",
    "signature": "0x6fa387bddfa7fb64cac803b0897c72bf9db2c60770c743ec04bb669c8b7bbcad6b6b80d4bde3c00aa20357d4968f7d306d3a31e157ed55cfa838547fee7c4e5b1b",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}