{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219968466",
    "entityType": "User",
    "nonce": "0xc38f2c60e35298e7a1157aeed5e11c34b9fecc1c23b1f9a32bd9d622e694fd95",
    "signature": "0x37a433b22cfa642a91a72baa065e1f97bb005c312985dcc81c79ddfc35c7759864c683dc9c3d528b1699c136ca14cb1f04707ed64919842c520978d214ef5e201b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}