{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "418",
    "entityType": "User",
    "nonce": "0xb3b790ea9186da9c09694aff54a27c3f03875c941fe3cd20c1e91982a384efbc",
    "signature": "0x716c443932dbc1e47b1563b9b7014ed4a234fc74702ba59d943f0a9799f0063865abc02ac6fe8f0fd8a88318470e886e3646af32c95cac153232d6db3174d1aa1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}