{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0xb15188c90690a422c3e65a0eb14637fe10b4bae3edc616c947360e76b78a14bf",
    "signature": "0x2abd5d581df1a8f47ea6216752805cda6f95b879b561a5272354a27c95b1edcb3caef532b63c0f6ced12bb1470a3a7254e5571480855b4569f608e6f94bfe2f71c",
    "signer": "0x3D1252Aa2e83641DFAc3Db992907399361A6F464",
    "userId": "125858"
  }
}