{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144609",
    "entityType": "User",
    "nonce": "0x892ef2b0c30e62eb526ade8a36aa2b389edaebc35b426a4d15dd03467e10c987",
    "signature": "0xbb0986ece21c1f9f27052747de50e6474dd7899dd6ff5606d16145ed962b0c6e7da9c0faf5c0dadd69078781d434bb82e362db129a5e25a4f914e323e95e2e091c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}