{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d7ad21ab7c1e43b15d8f9061cf14535157873caef7b1e58cdb5d06ba25b4027",
    "signature": "0xf2adf4ed46367e265cee5f47078e27511a0b273b42c07dcb1db543363c23c8033b78997532fd8b17ab1b1f6507e8e531cc49c80fd6d24962beed68bbc8e0e44a1b",
    "signer": "0xCc534fdc7bd2619018b21C2387d97c35D9084a0B",
    "userId": "683076674"
  }
}