{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x90207894b39cc8e72a8a06db08e89d03059af6c3582fbd93b0693d2f0bb17912",
    "signature": "0x8b7ea95156c0b2674ff3251bedc481d461c063e23c33edba35c99d634d4fdc68243297f90e5c99e72a1026cb7cb0134b07ea81b0f0f670a8415a13f13b02d4f51b",
    "signer": "0x70559eA08FdCc5b0de1d03FdC7571c7DD8E49fAa",
    "userId": "395760110"
  }
}