{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235412",
    "entityType": "User",
    "nonce": "0x001905b23cb40b66d1e730477a64a102a4bf1c65998d359b1e939863f2f22b87",
    "signature": "0xf64ddd4fc7e8a224be857127bb2c46d3e17c5828cede1c4920da74c3b6219a5a29cdd5796572876d0b4283b442c2d8f7e9eef01cf47296e05b7f7c5cb11689d11b",
    "signer": "0xFE17Fe2677AF57d35AbC9CeafeA4FF91C4542293",
    "userId": "934065758"
  }
}