{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78148",
    "entityType": "User",
    "nonce": "0x438a457afd06ac9f6f3f757fa123a80d9f65d4864c0f8a3cf9ead2657b2001d0",
    "signature": "0x3ad5bf7c2b87023cb7e86f95fbb2e392267051fb15d454f1e93c4380965ef2806ca0e29be156d7538627b621439f6932c44f0014baf2825ca958ca9b078a1b4a1c",
    "signer": "0x5d38Cb184274A585dC79f62FC669Eca2c573005D",
    "userId": "867710486"
  }
}