{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "898830424",
    "entityType": "User",
    "nonce": "0xdbd4a2dcf57730af720989bb6fa535d108421a319d16629952461d084a7b86e3",
    "signature": "0xc19ef0690b64b8805e80bbba53f00b0abaffafd0b89a1603ea2da1757115055e6c9e5c70d78e3edf81148001e25d478f0ea29b9e6aa1d406ee022d433b4c48f81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}