{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174894112",
    "entityType": "User",
    "nonce": "0x1297f913f18016546fd2b1d150bd54a6e35ef8ee244620565d8cb1e5f61c53eb",
    "signature": "0x529cb0e449a172e114e7214532419915fff45c0477a11e486b5202948ea7243c759b00c35cdb2be0dda4014631787b9ca05de5ae5c33a9e5203d4ab6aa2fae6f1c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}