{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217074",
    "entityType": "User",
    "nonce": "0x9890124618df321de96cb3eeeb09e7ec063ecc627cc19636c887fa152e1252d1",
    "signature": "0x621fd97a47bb28fa6cea90b15b4df65aadade8cdcabb422c11ec4dd6d1ea132b78ef40f73529da395f3e53eed621d7ff4f20fc3af5899ada8087b556d4e742841c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}