{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240650",
    "entityType": "User",
    "nonce": "0x0a2fcdda2145e3d893df4cca7c76104d67d0e27c331c2cddd5189e9d9ef65f60",
    "signature": "0xfc2fcfd8e41ac96a3fa5a12387c4ec5b393e2b73c4474133a985d0fe6136934f5205450819291033444baa4570f3d97e6bbc89c275d8bcc528a37a255bff3d1f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}