{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775922",
    "entityType": "User",
    "nonce": "0x20d8c4fe5d2c2822f58e0d4ea2a83c107ffff728402c2a7cec33801afd7d4abd",
    "signature": "0x8bc15072f402b00196f3a7f6b7fe9a683d04010faea728cd38accf9d856dceff28251d69d04cc5e73b6672ec6e980b5824c3b8591080f0e1853e4fb64f5b5b911b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}