{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x9ca2aa94543771ef9be2be540404f8814608607f28c94aa23eb5f9843f6dc6c2",
    "signature": "0xfa693a544fbab646f49537baa2a0e97d82a5a63585fd206a92d139c6ae4d01194b2b47b08bc1239aa2558bbc289e0d874c62d169c108a04d319e1dbb9893bcc21b",
    "signer": "0x2897361b4DC9b730012F28B290F72c1285C3e121",
    "userId": "420563019"
  }
}