{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215428",
    "entityType": "User",
    "nonce": "0xb827e054d21192c4550cf700792d1785baeaf12aa933221f82bfc1e7335623dc",
    "signature": "0x44e6cfa7d157760b6e32106cf423d7eb152f9be2a20f81deb5e25bc06780d2e00bcd3af5308a899db3cd843fa44b6e1dbb299415e8842c4c38bdc9105cc288fe1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}