{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0xba0fbd3b098d2dd6b0cf336a2ff2afe49992e667986a1fcf090ac7aaeff2caf5",
    "signature": "0x2e72833b3dfc6841042e243b175d5157e657b10edec23ad0e9df5cf788a607411a16f5d4bdce1d1d56efc6baeeb6862d0ae1f4f858fa1e5cbb5b096aaa9d7d741c",
    "signer": "0x0fd7D56eC9517Ace401083F2C8A4e671aAD50bd8",
    "userId": "549022539"
  }
}