{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "278865767",
    "entityType": "User",
    "nonce": "0x187460521126ea3e24c7bec848e5e203432ba375272edbc04484c7276f1734be",
    "signature": "0xe251b56b1490fd5595c8a3a855ba96a3cefd80014910041bc3083dc1309716653e37be6b28acb89a29887137ee44882b0b022772cd50d930fd82200616bf213c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}