{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327088",
    "entityType": "User",
    "nonce": "0x4f81c2c18e46ecd5a02313dd0de705fb64a142ed6fe73321e17f4b2f4ba307bb",
    "signature": "0x110bf038907e9dc56b4db37246f378427848a99fdc3a63bd0fd3d115a8296b7560ca7f453027212c78bdb1ab6ca2b0e0bc759aaa83b1d028f867a0546908f9c71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}