{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144260",
    "entityType": "User",
    "nonce": "0xd4fe64943c9c68f347fc208708ed8969f6164f4fe440a962b95ddf3d087e1a25",
    "signature": "0x7a177c48c6511fa7d6e2a68c653238d87729b8f4158573e2d206f41c49293408254ef2e204769c54d0681f3a10fd5b1ab01046daa773e142c6ccb8b9ad0cf8621b",
    "signer": "0x7f06371Bd6C2Ca2F94Ed2cE6b2152DAdE40F4507",
    "userId": "200990"
  }
}