{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137494",
    "entityType": "User",
    "nonce": "0x9345dd8095d908c46ebbf1899323dd4ae7927bdcbbac496a00bf5e6d5edbab24",
    "signature": "0xcf2f435207d37e8a22722a4becd90e8ec2888c43362e4d0bc470e481a82ace9b1399ab8285b9121c6e2230037916a3ab2fdbdad266e1ad3868ac9c91c9313b401c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}