{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa82e0877b92b133a6867ccb0b7d8881af603d4570506a871a37c8268265ee2cf",
    "signature": "0x52cb68eed3d20e968268baaa6636e71711858050d72c9eedc9d26ce9606bce5f74113671811127b8bc9872a6935773c1caa2e77f3419b22294a2cfdefdb7c7611c",
    "signer": "0xb2854Fa538d2215035c0F5953E3a9E5a5b503d74",
    "userId": "831499615"
  }
}