{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "356472",
    "entityType": "User",
    "nonce": "0x6386c443875827bd293fc6ef02ebbaae3adb606ea5c1f09c86531a7247b67f0f",
    "signature": "0xbee5b70d8bba88b95b0a407c178ae9cb5a61c8db0185f3c5eaca8ca6421dfa197f7b585a5b34a41e604c0a158b6e62f9f57e0cdd8b505436cb3ca29da74b60571b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}