{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120044",
    "entityType": "User",
    "nonce": "0x4fb4a70a0f49012ab0e23cbcc855f5143757a15d0bb77b1d909eb688e6984545",
    "signature": "0x7cd4f6f7611b60fd166a073bb52a1d46a24c18717f2d928b2358e24421061ba7071e77a22e55766a47a13afd2af699d5e1095ed43fa1c917805ba89d13f791af1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}