{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372264",
    "entityType": "User",
    "nonce": "0x048a7d2c6a1cce847148d728e16665d47cbb79e534c7ce395fe89de0b387c947",
    "signature": "0x7bd85f43aab4cdd4fadeb560d8385c09bd977572f95d66ce9032be11e7bfac4040430f4796d850cf33d1ad104270d304cb38f0298386451527e2a4f314eb3c391c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}