{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173580665",
    "entityType": "User",
    "nonce": "0x6cded936748d9d25b5aeb703a83958429752f7ebc05391c927c62804ce049a03",
    "signature": "0xa5bbb4039f6e03283d98e0e05e62ba9b40ac17c35077d04dff3dc7a52339cd8c0ef2a4fabb01f0750af27a5b3518e33010ac3de30b2299a1dafd31abb92fbf571b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}