{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136287",
    "entityType": "User",
    "nonce": "0xbef905a05922e4dfcd3a04c96ea8f9988a63676c20250e6f89d0a3aa6269a6d8",
    "signature": "0x8492301ed173bfe8b48ff15fbfcde009cc6c57d76e5ab0aec89425a1d67cf0e313913eefe8f7480405b7d133301fef231245060c1a62b35f966cb5164f746c371c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}