{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77755",
    "entityType": "User",
    "nonce": "0xd82ac7e53c6ca8dc9c3069ebdd14743250fb8897d8261810162c0456a47753ab",
    "signature": "0x4fed8f2c26564ae4663980f62238426e88de774b7d5b4d3923dddfe76160ee0509bc8c819e23c407430d005489900b2152870b71584961ad6b374111cb52ad371c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}