{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "900325196",
    "entityType": "User",
    "nonce": "0x3a3be4b065c6744aa456711f2e1ac4b1422efde69c32999f39c69195ce1f4db4",
    "signature": "0xd2fe0f4be5fbc7209976c09b8a4ac8ed5f4177339d4fc4cbcb4f5cf7952ce23045d68bf6ca906fbb75a586bf227dd2e63bd2b6e78fe4d78fed6498df10d69aa91c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}