{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd9e4b2b755ae22fa98e14a31ee14d2e148c75ed2399e3d67e389ee0144e8d592",
    "signature": "0x6164c649ce8d767f9432c5412e3c2da712cd6425b2b8f451645f86f8c5ff06da72d234cae2edddea4a341e35ee6c45e78f65eb3dedb2882bb13a477b1c7285c31b",
    "signer": "0xa46A0a594054691B5d8AF411eE84afeBc428C090",
    "userId": "974135633"
  }
}