{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "245636711",
    "entityType": "User",
    "nonce": "0x1bdacadacecceeef2704a55c8bb56ba7bda6bc404b1a2ae9d5a69c5ec083bba6",
    "signature": "0x7210186e9b147c72ec8e6d10406a20feddc23625bf6509701fe15989447a22e75f043a95bceb89654965b0409950a94fd0e7b94ec76222d3ade885d8344a69ad1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}