{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1446435",
    "entityType": "User",
    "nonce": "0x263dad10de7fd44096229ac1c3d531c8a335689f03e0f53d00c47e1c6de50b87",
    "signature": "0x55ea0bada295236c87c62f0d4e6fdcb411d730d3eb4d0b19270a44be5bd35ae43dd2c487a582d2ec107f1a7f89a37b31ad649ffac3f8ba084271b3a900e686371c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}