{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180931",
    "entityType": "User",
    "nonce": "0x81b626d28686e970996a5a56479dc0da2b5305ae7c422fc0b767e5d870c58705",
    "signature": "0x1aee254d24d06cbc592ca9038a4f8fd562a6c3fbc266840c3ed2d447a7ce38db67c95d29e2b4ac7617e55a51d2e9ccb51f4cf80a156c5107cb7276d68ada86f21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}