{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275210993",
    "entityType": "User",
    "nonce": "0x646df093bebb4aea0c6806803869c1fefae919c49380e3d7267c52fc57260f56",
    "signature": "0xe582cd400ed287d0b20b2682ac767434e153ac44fd6ff3a77b631ecc427e245030401efb573478b92fdeccfeec11efc3be62651ae5f004d66ccdae5bb1bc276a1c",
    "signer": "0xd9Fa1ac44597D750006BCEd68B36a63Afa62AEfC",
    "userId": "221168944"
  }
}