{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370220",
    "entityType": "User",
    "nonce": "0x7e3566839b97cff89b32b9812d684520c12ac1774837311375ca778666430cd5",
    "signature": "0xd122e189f24cad86e33db0ef51e4a99f092c6e000c1ef8f593fdbde33b4cd981076749f37f1673c9609c0d616bc65e19f9f4cb0f3c73b5c3196a2c1ae9f53f0a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}