{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "204603",
    "entityType": "User",
    "nonce": "0xe14b5c9af36a90b18acab1f4446b667bc7da60539da8f99bf7a5ffe67a775465",
    "signature": "0x10b58a7207ac32ddcce66e0dad034dc9482483d9619235ae5c812fe0a05ebb8b35ad0dc7d9406f8546e3582f01e5cc9e111a0694b7162f0492047faf286fadd31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}