{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938604068",
    "entityType": "User",
    "nonce": "0x5e78cbd45e515e9cb276e3b15e1017c81770902bd7a87fe369a3c4a4166aa665",
    "signature": "0x5821d0ef62118eb5724b4641ac7944b711d1765817d0b3753139d64bfdbd0ad80f4bf43cc2173305f869b87025a827862625e52d61e7bb157e88bd6cb7a1e52a1b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}