{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0xddf91b1a76c52fa13e38b1a7fad2b2c83794a7dc92da2728a55811f0f3b51add",
    "signature": "0x637fbb3ff470bb13ce8adf4e7349c703e37f8f74844c612c979f1efab15d9b32345f2a679507d04074527c441689b252a9ca4293f65092bad8e456cc38d2c28b1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}