{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135021",
    "entityType": "User",
    "nonce": "0xe676e1e15978296b40df1de39addeb99356c7dfcc243bbd856aefa5ff1b2b8ce",
    "signature": "0x744c3d360ccf7285cf5bd1dd73c511605e2c3401291861596b7edb81fffe55c440cda71cfb0267a84f511c926901dd62f3e3ef95019e259dec3871efe12e127f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}