{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1895805",
    "entityType": "User",
    "nonce": "0xb97ba17573f3e7d6e5669e18d5eb6ac8a94dc402395e02bb60aa692ec527af45",
    "signature": "0x7f70719df57e76b1713fad3ccb612f115267c3d77a98a21902b371f4f29abddb37120dff5624c20c54be80a336610beda762945d21410e2aff0d5ebfa6451d841b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}