{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377311",
    "entityType": "User",
    "nonce": "0x880510345ba76035a45d1b15ffcbb439eec23edc82590d91fa5e088512b64378",
    "signature": "0x1c8325f9922ff6330c1edd9f615245888f04face04443e64e35c04fd919741971a818595a82e72808f6ada4f5f0b32eddb0a351ef815a84d9cc2be37857f1e5b1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}