{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1888945",
    "entityType": "User",
    "nonce": "0xf028c9e96e5485e28235125c3fa6a67074d18ee2458bc9527c06dccc8ec76729",
    "signature": "0xcabc1e87a2c2b965be8e4b0d9cba3cbcc2e9c8d04662ca63b00dd7456118955c44549f4b45d7f079408db01d272cc2e46cf3b63800a7dbf7b6fe5bd1369355511c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}