{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81924",
    "entityType": "User",
    "nonce": "0x9833545d9fb5ce700fc3f45c851c8f3084c202d02842153239845f3e04fbcb38",
    "signature": "0xf86fa5f204547f083581dd4b369eca94cafeb16d92f2b56fd8452c194e7be1485e67a5a405650009428cf6c3ad96d4391571b1a64c55b37b9d389392596a488c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}