{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463354",
    "entityType": "User",
    "nonce": "0xc2ed102a3d5f621675dcb298c670622855cc431f2e7f4025abbc2d87d29beb95",
    "signature": "0xecb3e9c4c386fbb82c1f9a1471887c408e0eb977deaab3ec0edad79cba63a773797fe8beced910a431c62a792ff2b2e0ec7bc28dc61c19107ecada357e5b56fe1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}