{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353898",
    "entityType": "User",
    "nonce": "0x8440f643186f53c8091a5893200339f1757b1e6522600a4d7c4e934ed495e16f",
    "signature": "0x2963d422120a0cd0af53a8aa850c886a4f4d371de0d9a3039a1406533982c7dd17b35694b7278ab6fe4fa2ddfcde825a054c310b9623cce6b781d3d53f832acb1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}