{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3763",
    "entityType": "User",
    "nonce": "0x3aaa2891e1f26eb58bfa7370ff08480005b2bb3bb0c970d83e504e369c5ab9cd",
    "signature": "0x5202e11363e44b9cf2554f02090a0a0cdd1365a56666832fc05e9e919c50846f704e4858d32a2aec21e3aef6ace346f9efec26a837180b9480ddebc94585007d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}