{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13915",
    "entityType": "User",
    "nonce": "0xe9e5af04ec1fc7e0e839a329620de721b73b2b45442a92e2799bcc3e2d1e4b9a",
    "signature": "0x51dd006edf65047d17e77fa0474252443bc4de259784811091ac3fb3e6d8c3964a25cc242fd35c8825810ae2b06a0080553a88cfaac7ff897a78cba4ec94ee891c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}