{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17994",
    "entityType": "User",
    "nonce": "0x80c6a563160d75ded197987e49520e01627a7e6cdcb0404be67435650fd67c9f",
    "signature": "0x2d44f75a760e8aca6b658e480126cf8068fc99c8605b67900cd951fb030bae403aa7944d1f6a0f3596085ee197c5f298e8456f0cb1778435fc480aeb1a61a9f01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}