{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x2c4fbc3f1d5d269f3d61c26147f09de03ff366695e7675ece2552413726285e4",
    "signature": "0x1a650594c9df64558b18c2e1bf4727433bfc866dc3bbf4581ee50de9f71b26c83f5d1ccf4c423673813f40216128efb2f6b9a4e81679bd798289891893dcabd51c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}