{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "700861",
    "entityType": "User",
    "nonce": "0xdb4452f4007d2868d1c3af13204574f30c363bd1c0ff24b553cb43b5daeddff0",
    "signature": "0xa857ae7934ede25769052a373aac3ee59f3d93c2e1eed1bec773a6e1a071ef41294b0af66824120d823f1baf1fe05808fa5103edd07e8e17364920e2ab7ce44b1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}