{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57011",
    "entityType": "User",
    "nonce": "0x3baefc4f46c9309cae23a602b00e09a04b2bb1562dadaccbd0add56b104584a0",
    "signature": "0xa72c2ab8888f63741077cf5994f52f8b0923340a39a93b81d90335060e77c93248f22918d55e18a0f61df88c3a8d81bec5412dcbd3845db5f9f58024ec8335e71c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}