{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa22b6706eb4b7229786598e3f4def6223c02cca3bedf0214df96a9d358925cbd",
    "signature": "0x5300542c3c0878ee8012ab479c4e3fa6da999096722d19159ee373ce8cdac0f415c611993830c8d97cf10204c786cf063ce5f249deb5f5dea4c645e479b3de3e1b",
    "signer": "0x3252C4c7Ace8872bFf0E36771692c80c2E8eD894",
    "userId": "28229481"
  }
}