{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64562",
    "entityType": "User",
    "nonce": "0x8eded97c20fb0e291b94bbd2317872056b63c106c991fce4b57d10eb1e9b672b",
    "signature": "0xbc782e4560d4f6b93a1b9d965a7e352d559e195f383ae9bfdef38c1675ae91b70d6ee8516031eac29cd1b03d2848ec844e0055c5348a8d5f0fa5aa92d9ca5c8c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}