{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x547fc1bacbb18c39d5466b78ff02d1d3db1ef0a8aaafe59622e3ef350ff037f5",
    "signature": "0x3dfb7d515daef3bf95ee8e571d4621f7d184acc1d0b551b0e8f91915eafab63807bba7b1e12ea8098acc04bd3433f2335cd16f07bb1e97a5742e9d074aa70e1a1c",
    "signer": "0x083626C5983025BFec0Ca7BC8FC5B244f8e29b75",
    "userId": "482858095"
  }
}