{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x573df2ec5ad680bd3aea175428a22c4879c9e06d5243331e0333777b91bb4268",
    "signature": "0xe97e9e303d28173a28d2f38e6633d8db0ded828a800bcf679efcb9a7ff50893055d87cfbb84d1a471b50010a77484432fa715d0462efa2afda6f252ca661611b1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}