{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4609",
    "entityType": "User",
    "nonce": "0x7b8078c4577e0922a71a1bfbf6bace4f96d8ca2d906f69b403a2a0dcb9af6d3b",
    "signature": "0x3ee51c941924a91dba29e59d60051c64ac81a88bd1d85f6d4ace143c65311e531e5fc50952eed67fec008aa8fa17b3e0656c1a6c9ddfe43e9306c2d2c74579531c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}