{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x6f49ffdfe1ce2076ecf1c3be0e9001faf0dd80885ea917ddd1e7f7b9260db338",
    "signature": "0xd8153062b91b59ed28e0d0ed57048a7f34e83817a25a0ada40ca3ce4919f85a702be42b7b482f5a8bf6a83daa89b407aa6386077bda814bd07b2a8aa2828f53e1c",
    "signer": "0x1e9F846fdf1a89ba11e2D67fb4831B7E14ae8940",
    "userId": "617992566"
  }
}