{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323963",
    "entityType": "User",
    "nonce": "0x0f77cc1a792d348f236689294fea832f9c3e2c0a8e902707b2c49a86d4935e25",
    "signature": "0x91f176a03d068736054a0374a5e5956b37e48f00de51dcf164ae45441a77df7c7d20c7607296e1562668e1773bcfa9d2f2f2925140136fce189c305fb95053871c",
    "signer": "0x764341232AB28643e8106bCF183A4cCc2fFfa6c3",
    "userId": "67250118"
  }
}