{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108860",
    "entityType": "User",
    "nonce": "0xdd91e74b307fcd18d6dedbb6e0bc6b7c563369f19517e7e71032478a38d28fb4",
    "signature": "0x98451706f5dabb96cbdcae2fc91d93aca36309f14a9dcdef6badc3526f8068073bac669366a0cc8ae77233435245c02bac799788ff3da54215398f7459e978c11c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}