{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342990",
    "entityType": "User",
    "nonce": "0x5c979c3d22bedb6a0978618254adce7454c73dc548c6f7a46c0516f24de53c90",
    "signature": "0xd4299029c4c41d533cedc2541c24842ec71fb31e8720a1f81024b9fc849f135e57ac2c6238e2d046f9b336269a04dfa36d126de73f8191c4a20a70b0981863ce1b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}