{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x1053a3b6d886496050b240470d5663986a1693c1728f4c9e93308ad0a829402a",
    "signature": "0x518eefc69acf7030b9ef5c07d462118e26192c99e03edc2973d036aafdd157eb69088fb5a6c759ca8b018e4768685320cec6b9faa87d08bd1d0dc6680e68cafb1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}