{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318437",
    "entityType": "User",
    "nonce": "0x13569d1657dd9a808c47f4be116397e7dad89f46a6887f0c1618b071a9cd342b",
    "signature": "0x980d13cb29307b6a2f091a9cb45b2c537e8cd916c86240c2850a5b152be0d0d75bf9a1b7ab1342f0d6d3361c14c06cb2e83c723d2cee37cd518d66068bb214571b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}