{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4671",
    "entityType": "User",
    "nonce": "0x3e72347677cb3f03ba1408d6e0c6846240486db0e08309d45f021602a2682064",
    "signature": "0x1bb462425c097e6a8d9d08a60d7cd22b526cc52fd1ee479f08ae87f4d3d60e876e5365d5416995cc40ceb179f750d1f482494b970bf65ad0b1a3a7a0eb0e2b271b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}