{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55369",
    "entityType": "User",
    "nonce": "0x307d156d8cae0b59d478f2d2b46816109da81fc7b7176baa3dda58eafdf5578d",
    "signature": "0xc5178dcce3c9e45a5f35377a4b05f86257d1513aee7edf66c5ac8a33a76bf7a13568d67047dd0d66e7a4d4cdd291f80bdfc212f09e439dc6eb1c35e8f03ca00d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}