{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48247",
    "entityType": "User",
    "nonce": "0xbce3cc87cd308254ea266cc5cac9e17a766b6c40a2f2716622d3c028b622a671",
    "signature": "0xde537ae2d13e9dfeb903defb355befd56aba675d4d9dbe4b45ba449dbf579c363cb09d359835035c752bdc4eadc1ba58c2be55f38b2ee2dd701c86e1ace5a34d1b",
    "signer": "0x4950A7c498b6c214e83B79502162b7f248f9e6ed",
    "userId": "499895630"
  }
}